Sanur to Nusa Penida on Viator
Fast Boat Transfer: Sanur to Nusa Penida by Penidago sponsored
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- from US$10.88 per person (about AUD 16), read 13 November 2026
cuaca weather
Nusa Penida weather by month, and the sea you cross
Nusa Penida, Bali, Indonesia, and its neighbour Nusa Lembongan share one weather: warm all year, wet from about December to March, dry from about May to October. The choice is rain against swell. In the wettest months rain falls on more than half the days, and a Sanur boat operator names the wet months for most of its weather cancellations; in the dry months the rain stops but the waves in the strait and off the south coast grow. Pick your month below for rain, heat, sea temperature and the share of days with moderate or higher waves on the crossing.
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musim season
Pick your month: Nusa Penida and Nusa Lembongan weather
Each month shows the average of many years, not a forecast. Rain, air and humidity come from climate grids for 1991 to 2020; one grid cell covers both islands for air temperature and humidity, so those figures serve Nusa Penida, Nusa Lembongan and Nusa Ceningan alike, while rain is given for Penida and Lembongan apart. Waves in the strait come from 4 years of wave-model data (Meteo-France MFWAM wave model, 2022 to 2025) and off the south coast from 30 years (ERA5 wave reanalysis, 1991 to 2020).
January on Nusa Penida and Nusa Lembongan
For your day: rain on about 18 days of the month, 200 mm in all, and highs near 28°C (82°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 57% of days; off the south coast, the high band or above came on 9% of days.
- Rain, Nusa Penida
- 200 mm8 years in 10: 105 to 315 mm
- Rain, Nusa Lembongan
- 205 mm8 years in 10: 110 to 315 mm
- Days with rain, Penida
- 18 days
- Air, both islands
- High 28°C (82°F)Low 26°C (79°F), humidity 82%
- Sea surface, Badung Strait
- 29°C (84°F)
- Badung Strait, share of days
- Moderate band or above 57%High band or above 0%, very high 0%
- South coast, share of days
- High band or above 9%Moderate or above 93%, very high 0%
- Inside the rainy season the UK FCDO gives for Indonesia, October to March.
- Inside Smartraveller's wet season for Indonesia, October to April.
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
- Semaya One, a Sanur boat operator, states its weather cancellations are uncommon and fall mainly in January to March.
- The north-west monsoon, December to January, brings poor weather that limits access to the manta sites, Germanov and colleagues state.
February on Nusa Penida and Nusa Lembongan
For your day: rain on about 16 days of the month, 150 mm in all, and highs near 28°C (82°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 55% of days; off the south coast, the high band or above came on 11% of days.
- Rain, Nusa Penida
- 150 mm8 years in 10: 85 to 210 mm
- Rain, Nusa Lembongan
- 155 mm8 years in 10: 90 to 230 mm
- Days with rain, Penida
- 16 days
- Air, both islands
- High 28°C (82°F)Low 26°C (79°F), humidity 83%
- Sea surface, Badung Strait
- 29°C (84°F)
- Badung Strait, share of days
- Moderate band or above 55%High band or above 0%, very high 0%
- South coast, share of days
- High band or above 11%Moderate or above 90%, very high 0%
- Inside the rainy season the UK FCDO gives for Indonesia, October to March.
- Inside Smartraveller's wet season for Indonesia, October to April.
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
- Semaya One, a Sanur boat operator, states its weather cancellations are uncommon and fall mainly in January to March.
March on Nusa Penida and Nusa Lembongan
For your day: rain on about 13 days of the month, 150 mm in all, and highs near 28°C (82°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 53% of days; off the south coast, the high band or above came on 5% of days.
- Rain, Nusa Penida
- 150 mm8 years in 10: 80 to 240 mm
- Rain, Nusa Lembongan
- 130 mm8 years in 10: 65 to 210 mm
- Days with rain, Penida
- 13 days
- Air, both islands
- High 28°C (82°F)Low 26°C (79°F), humidity 82%
- Sea surface, Badung Strait
- 29°C (84°F)
- Badung Strait, share of days
- Moderate band or above 53%High band or above 0%, very high 0%
- South coast, share of days
- High band or above 5%Moderate or above 90%, very high 0%
- Inside the rainy season the UK FCDO gives for Indonesia, October to March.
- Inside Smartraveller's wet season for Indonesia, October to April.
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
- Semaya One, a Sanur boat operator, states its weather cancellations are uncommon and fall mainly in January to March.
April on Nusa Penida and Nusa Lembongan
For your day: rain on about 9 days of the month, 80 mm in all, and highs near 28°C (82°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 60% of days; off the south coast, the high band or above came on 5% of days.
- Rain, Nusa Penida
- 80 mm8 years in 10: 35 to 125 mm
- Rain, Nusa Lembongan
- 90 mm8 years in 10: 35 to 135 mm
- Days with rain, Penida
- 9 days
- Air, both islands
- High 28°C (82°F)Low 26°C (79°F), humidity 82%
- Sea surface, Badung Strait
- 29°C (84°F)
- Badung Strait, share of days
- Moderate band or above 60%High band or above 0%, very high 0%
- South coast, share of days
- High band or above 5%Moderate or above 96%, very high 0%
- Inside Smartraveller's wet season for Indonesia, October to April.
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
May on Nusa Penida and Nusa Lembongan
For your day: rain on about 6 days of the month, 55 mm in all, and highs near 28°C (82°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 76% of days; off the south coast, the high band or above came on 15% of days.
- Rain, Nusa Penida
- 55 mm8 years in 10: 20 to 85 mm
- Rain, Nusa Lembongan
- 60 mm8 years in 10: 25 to 115 mm
- Days with rain, Penida
- 6 days
- Air, both islands
- High 28°C (82°F)Low 26°C (79°F), humidity 81%
- Sea surface, Badung Strait
- 28°C (82°F)
- Badung Strait, share of days
- Moderate band or above 76%High band or above 1%, very high 0%
- South coast, share of days
- High band or above 15%Moderate or above 100%, very high 0%
- No official season statement or operator note names this month.
June on Nusa Penida and Nusa Lembongan
For your day: rain on about 7 days of the month, 60 mm in all, and highs near 28°C (82°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 83% of days; off the south coast, the high band or above came on 25% of days.
- Rain, Nusa Penida
- 60 mm8 years in 10: 25 to 115 mm
- Rain, Nusa Lembongan
- 60 mm8 years in 10: 25 to 130 mm
- Days with rain, Penida
- 7 days
- Air, both islands
- High 28°C (82°F)Low 25°C (77°F), humidity 80%
- Sea surface, Badung Strait
- 28°C (82°F)
- Badung Strait, share of days
- Moderate band or above 83%High band or above 3%, very high 0%
- South coast, share of days
- High band or above 25%Moderate or above 100%, very high 0%
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
July on Nusa Penida and Nusa Lembongan
For your day: rain on about 6 days of the month, 40 mm in all, and highs near 27°C (81°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 94% of days; off the south coast, the high band or above came on 34% of days.
- Rain, Nusa Penida
- 40 mm8 years in 10: 15 to 70 mm
- Rain, Nusa Lembongan
- 40 mm8 years in 10: 15 to 70 mm
- Days with rain, Penida
- 6 days
- Air, both islands
- High 27°C (81°F)Low 24°C (75°F), humidity 78%
- Sea surface, Badung Strait
- 27°C (81°F)
- Badung Strait, share of days
- Moderate band or above 94%High band or above 2%, very high 0%
- South coast, share of days
- High band or above 34%Moderate or above 100%, very high under 1%
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
August on Nusa Penida and Nusa Lembongan
For your day: rain on about 4 days of the month, 15 mm in all, and highs near 28°C (82°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 90% of days; off the south coast, the high band or above came on 29% of days.
- Rain, Nusa Penida
- 15 mm8 years in 10: 10 to 20 mm
- Rain, Nusa Lembongan
- 25 mm8 years in 10: 15 to 40 mm
- Days with rain, Penida
- 4 days
- Air, both islands
- High 28°C (82°F)Low 24°C (75°F), humidity 76%
- Sea surface, Badung Strait
- 26°C (79°F)
- Badung Strait, share of days
- Moderate band or above 90%High band or above 4%, very high 0%
- South coast, share of days
- High band or above 29%Moderate or above 100%, very high 0%
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
- Upwelling of cooler water at Crystal Bay peaks in August to September, Tito and Susilo found.
September on Nusa Penida and Nusa Lembongan
For your day: rain on about 7 days of the month, 50 mm in all, and highs near 29°C (84°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 80% of days; off the south coast, the high band or above came on 23% of days.
- Rain, Nusa Penida
- 50 mm8 years in 10: 20 to 65 mm
- Rain, Nusa Lembongan
- 55 mm8 years in 10: 25 to 75 mm
- Days with rain, Penida
- 7 days
- Air, both islands
- High 29°C (84°F)Low 24°C (75°F), humidity 76%
- Sea surface, Badung Strait
- 27°C (81°F)
- Badung Strait, share of days
- Moderate band or above 80%High band or above 1%, very high 0%
- South coast, share of days
- High band or above 23%Moderate or above 100%, very high 0%
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
- Upwelling of cooler water at Crystal Bay peaks in August to September, Tito and Susilo found.
- The coolest water on the Crystal Bay reef logger came in September to November, Tito and Susilo found.
October on Nusa Penida and Nusa Lembongan
For your day: rain on about 6 days of the month, 55 mm in all, and highs near 29°C (84°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 82% of days; off the south coast, the high band or above came on 10% of days.
- Rain, Nusa Penida
- 55 mm8 years in 10: 15 to 110 mm
- Rain, Nusa Lembongan
- 85 mm8 years in 10: 25 to 190 mm
- Days with rain, Penida
- 6 days
- Air, both islands
- High 29°C (84°F)Low 25°C (77°F), humidity 76%
- Sea surface, Badung Strait
- 27°C (81°F)
- Badung Strait, share of days
- Moderate band or above 82%High band or above 2%, very high 0%
- South coast, share of days
- High band or above 10%Moderate or above 98%, very high 0%
- Inside the rainy season the UK FCDO gives for Indonesia, October to March.
- Inside Smartraveller's wet season for Indonesia, October to April.
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
- The coolest water on the Crystal Bay reef logger came in September to November, Tito and Susilo found.
November on Nusa Penida and Nusa Lembongan
For your day: rain on about 11 days of the month, 120 mm in all, and highs near 29°C (84°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 42% of days; off the south coast, the high band or above came on 2% of days.
- Rain, Nusa Penida
- 120 mm8 years in 10: 45 to 195 mm
- Rain, Nusa Lembongan
- 140 mm8 years in 10: 60 to 220 mm
- Days with rain, Penida
- 11 days
- Air, both islands
- High 29°C (84°F)Low 26°C (79°F), humidity 78%
- Sea surface, Badung Strait
- 28°C (82°F)
- Badung Strait, share of days
- Moderate band or above 42%High band or above 0%, very high 0%
- South coast, share of days
- High band or above 2%Moderate or above 93%, very high 0%
- Inside the rainy season the UK FCDO gives for Indonesia, October to March.
- Inside Smartraveller's wet season for Indonesia, October to April.
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
- The coolest water on the Crystal Bay reef logger came in September to November, Tito and Susilo found.
December on Nusa Penida and Nusa Lembongan
For your day: rain on about 17 days of the month, 190 mm in all, and highs near 28°C (82°F). Crossing from Sanur, the strait had waves in BMKG's moderate band or above on 59% of days; off the south coast, the high band or above came on 4% of days.
- Rain, Nusa Penida
- 190 mm8 years in 10: 90 to 285 mm
- Rain, Nusa Lembongan
- 205 mm8 years in 10: 80 to 290 mm
- Days with rain, Penida
- 17 days
- Air, both islands
- High 28°C (82°F)Low 26°C (79°F), humidity 80%
- Sea surface, Badung Strait
- 29°C (84°F)
- Badung Strait, share of days
- Moderate band or above 59%High band or above 0%, very high 0%
- South coast, share of days
- High band or above 4%Moderate or above 90%, very high under 1%
- Inside the rainy season the UK FCDO gives for Indonesia, October to March.
- Inside Smartraveller's wet season for Indonesia, October to April.
- The US State Department's guidance for Indonesia reads Nov to Mar/Apr rainy; Jun to Oct dry.
- The north-west monsoon, December to January, brings poor weather that limits access to the manta sites, Germanov and colleagues state.
| Month | Rain, Penida | 8 years in 10 | Rain, Lembongan | Days with rain | High | Low | Humidity |
|---|---|---|---|---|---|---|---|
| January | 200 mm | 105 to 315 mm | 205 mm | 18 days | 28°C (82°F) | 26°C (79°F) | 82% |
| February | 150 mm | 85 to 210 mm | 155 mm | 16 days | 28°C (82°F) | 26°C (79°F) | 83% |
| March | 150 mm | 80 to 240 mm | 130 mm | 13 days | 28°C (82°F) | 26°C (79°F) | 82% |
| April | 80 mm | 35 to 125 mm | 90 mm | 9 days | 28°C (82°F) | 26°C (79°F) | 82% |
| May | 55 mm | 20 to 85 mm | 60 mm | 6 days | 28°C (82°F) | 26°C (79°F) | 81% |
| June | 60 mm | 25 to 115 mm | 60 mm | 7 days | 28°C (82°F) | 25°C (77°F) | 80% |
| July | 40 mm | 15 to 70 mm | 40 mm | 6 days | 27°C (81°F) | 24°C (75°F) | 78% |
| August | 15 mm | 10 to 20 mm | 25 mm | 4 days | 28°C (82°F) | 24°C (75°F) | 76% |
| September | 50 mm | 20 to 65 mm | 55 mm | 7 days | 29°C (84°F) | 24°C (75°F) | 76% |
| October | 55 mm | 15 to 110 mm | 85 mm | 6 days | 29°C (84°F) | 25°C (77°F) | 76% |
| November | 120 mm | 45 to 195 mm | 140 mm | 11 days | 29°C (84°F) | 26°C (79°F) | 78% |
| December | 190 mm | 90 to 285 mm | 205 mm | 17 days | 28°C (82°F) | 26°C (79°F) | 80% |
| Month | Sea surface | Badung Strait, the Sanur crossing | South coast, Manta Point side | ||||
|---|---|---|---|---|---|---|---|
| Moderate or above | High or above | Very high | Moderate or above | High or above | Very high | ||
| January | 29°C (84°F) | 57% | 0% | 0% | 93% | 9% | 0% |
| February | 29°C (84°F) | 55% | 0% | 0% | 90% | 11% | 0% |
| March | 29°C (84°F) | 53% | 0% | 0% | 90% | 5% | 0% |
| April | 29°C (84°F) | 60% | 0% | 0% | 96% | 5% | 0% |
| May | 28°C (82°F) | 76% | 1% | 0% | 100% | 15% | 0% |
| June | 28°C (82°F) | 83% | 3% | 0% | 100% | 25% | 0% |
| July | 27°C (81°F) | 94% | 2% | 0% | 100% | 34% | under 1% |
| August | 26°C (79°F) | 90% | 4% | 0% | 100% | 29% | 0% |
| September | 27°C (81°F) | 80% | 1% | 0% | 100% | 23% | 0% |
| October | 27°C (81°F) | 82% | 2% | 0% | 98% | 10% | 0% |
| November | 28°C (82°F) | 42% | 0% | 0% | 93% | 2% | 0% |
| December | 29°C (84°F) | 59% | 0% | 0% | 90% | 4% | under 1% |
| Source and season | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UK FCDO: rainy season | named | named | named | named | named | named | ||||||
| Smartraveller: wet season | named | named | named | named | named | named | named | |||||
| US State Department: rainy season | named | named | named | either-or end | named | named | ||||||
| US State Department: dry season | named | named | named | named | named | |||||||
| Semaya One: most weather cancellations | named | named | named | |||||||||
| North-west monsoon at the manta sites | named | named | ||||||||||
| Upwelling peak at Crystal Bay | named | named | ||||||||||
| Coolest water on the Crystal Bay logger | named | named | named |
Temperatures in °C with °F beside them. A "day with rain" is a day with at least a millimetre in the satellite rain record, which counts light showers too. Wave bands are those of BMKG, Indonesia's meteorology agency. The data page collects the site's datasets, and the sea data page sets out the wave method.
hujan rain
Rain or swell: the trade-off in one year
The wet months. January is the wettest month in the grid record, with 200 mm at Penida on about 18 days. December to February bring rain on more than half the days, and March is not far behind. The UK FCDO gives Indonesia's rainy season as October to March and warns Bali can suffer severe localised flooding; Smartraveller gives the wet season as October to April. Semaya One, a Sanur operator, states its weather cancellations are uncommon and fall mainly in January to March.
The dry months. August is the driest, with 15 mm on about 4 days, and humidity falls to 76% from August to October. The same months bring the biggest swell. In July the strait had waves in BMKG's moderate band or above on 94% of days, against 42% in November, and off the south coast the high band or above came on 34% of July days.
The heat barely moves. Highs stay between 27°C (81°F) in July and 29°C (84°F) in October. Nights are coolest from July to September, at about 24°C (75°F).
The months between. April, May, October and November sit between the two: less rain than December to March, and less south-coast swell than June to September. For a day trip from Bali, where the boat and the west coast both matter, these are the months where neither weighs much.
Month by month: a day trip, and diving or snorkelling
A plain verdict for each month, read from the rain record and the wave model above. "High waves" is BMKG's high band, 2.5 to 4 m, at the same threshold for the strait you cross from Sanur and for the south coast, where Manta Point lies.
-
January
Rain on about 18 days; high waves on 0% of days in the strait, 9% off the south coast.
Day trip: Possible, but the wettest month: expect rain on the day.
Diving and snorkelling: Warm water; high waves rare in the strait. The north-west monsoon, December to January, can limit access to the manta sites.
-
February
Rain on about 16 days; high waves on 0% of days in the strait, 11% off the south coast.
Day trip: Possible, but wet: rain on more than half the days.
Diving and snorkelling: Warm water; high waves rare in the strait.
-
March
Rain on about 13 days; high waves on 0% of days in the strait, 5% off the south coast.
Day trip: Possible, often wet; high waves are rare.
Diving and snorkelling: Warm water; high waves rare in the strait.
-
April
Rain on about 9 days; high waves on 0% of days in the strait, 5% off the south coast.
Day trip: Good: less rain, and high waves are rare.
Diving and snorkelling: Good: the warmest water and little swell.
-
May
Rain on about 6 days; high waves on 1% of days in the strait, 15% off the south coast.
Day trip: Good: dry, with the swell starting to build.
Diving and snorkelling: Good: warm water, some swell off the south coast.
-
June
Rain on about 7 days; high waves on 3% of days in the strait, 25% off the south coast.
Day trip: Dry, but the south coast is rough on many days: keep a spare day.
Diving and snorkelling: Cooling water; rough on the south coast, where Manta Point lies.
-
July
Rain on about 6 days; high waves on 2% of days in the strait, 34% off the south coast.
Day trip: Dry, but the roughest sea of the year: book a ticket with flexible weather terms and keep a spare day.
Diving and snorkelling: The roughest south coast of the year; cooler water.
-
August
Rain on about 4 days; high waves on 4% of days in the strait, 29% off the south coast.
Day trip: The driest month, with a rough sea: keep a spare day.
Diving and snorkelling: The coolest water and a rough south coast. Sunfish season at Crystal Bay, when upwelling peaks in August to September: see diving at Nusa Penida.
-
September
Rain on about 7 days; high waves on 1% of days in the strait, 23% off the south coast.
Day trip: Dry, with a rough sea: keep a spare day.
Diving and snorkelling: Cool water, swell easing late in the month. Sunfish season at Crystal Bay, when upwelling peaks in August to September: see diving at Nusa Penida.
-
October
Rain on about 6 days; high waves on 2% of days in the strait, 10% off the south coast.
Day trip: Good: dry, with the swell easing.
Diving and snorkelling: Good: swell easing, water warming.
-
November
Rain on about 11 days; high waves on 0% of days in the strait, 2% off the south coast.
Day trip: Good: the fewest days of the year with moderate waves in the strait, and rain coming back.
Diving and snorkelling: Good: warm water, and high waves are rare.
-
December
Rain on about 17 days; high waves on 0% of days in the strait, 4% off the south coast.
Day trip: Possible, but wet: rain on more than half the days.
Diving and snorkelling: Warm water; high waves rare in the strait. The north-west monsoon, December to January, can limit access to the manta sites.
angin wind
Highs stay near 28°C (82°F) all year; what changes is the rain and the wind on the strait.
ombak waves
The crossing: waves, BMKG bands and who stops boats
The boats to Nusa Penida and Nusa Lembongan cross the Badung Strait from Sanur. BMKG sorts the height of the waves into bands, and its warnings use the same bands as the picker above.
| Band | Wave height |
|---|---|
| Gelombang Sedang, moderate | 1.25 to 2.5 m |
| Gelombang Tinggi, high | 2.5 to 4 m |
| Gelombang Sangat Tinggi, very high | 4 to 6 m |
| Gelombang Ekstrem, extreme | more than 6 m |
Single waves run higher. BMKG's shipping bulletin warns that the highest waves may reach the significant height multiplied by up to 2, and that gusts can be up to 40 percent stronger than the stated average wind. Its Douglas scale calls a slight sea 0.5 to 1.25 m, a moderate sea 1.25 to 2.5 m and a rough sea 2.5 to 4 m.
Limits by vessel. BMKG is reported to rate sailing as high-risk when both wind and waves pass set limits; the wave limits are 1.25 m for small fishing boats, 1.5 m for barges, 2.5 m for ferries and 4 m for large ships (ANTARA News Bali, April 2023). Fast boats are not one of the four groups in that report.
Who stops a boat. Under Ministry of Transport rule PM 28/2022, the harbour master (Syahbandar) may refuse sailing approval for weather that endangers a vessel, judged by vessel size and/or type, and may postpone a departure on the basis of weather. KSOP Benoa, the harbour authority over Sanur, is reported (June 2025) to say it can withhold sailing approval for Sanur fast boats in bad weather until waves ease, using BMKG forecasts.
What the operators' terms say. Several Sanur operators reserve the right to cancel without liability on the direction of the Indonesian Government or the Harbour Master direction. Read the weather terms of your ticket before you book, and keep a spare day before a flight home.
When it goes wrong. The fast boat Bali Dolphin Cruise 2, sailing from Nusa Penida, capsized in the Sanur harbour entrance channel; KSOP Benoa is reported to cite BMKG wave heights of 2 to 4 m at the time (ANTARA News Bali, August 2025). Smartraveller states high wave events can happen throughout Indonesia's coastal regions, including between islands (Australian Government advice, updated 21 October 2026).
Tickets for the crossing
Both listings below cross the Badung Strait from Sanur and carry the operators' own weather terms. Prices are the partners' listed prices on the date shown.
Sanur to Nusa Lembongan on Klook
Fast Boat Ticket between Bali (Sanur) and Nusa Lembongan sponsored
- Listed price
- from AUD 6.45, read 13 November 2026
Every boat, port and stated crossing time: Bali to Nusa Penida
laut sea
Sea temperature for snorkelling and diving
The sea surface in the strait stays warm: from 26°C (79°F) in August to 29°C (84°F) in April, the satellite mean over three decades. Below the surface it can be colder. A reef logger at Crystal Bay, in Tito and Susilo's 2017 study, gave monthly means of 24.6 to 27.8 °C and an overall mean of 26.2 °C. The warmest month on the logger was January, the coolest September, and the water stayed cooler from the middle of the year through September.
That cool water comes with upwelling, which peaks at Crystal Bay in August to September, the same study found, and it is the season of the ocean sunfish. Divers chasing the sunfish should read diving at Nusa Penida; for the snorkel sites see Crystal Bay and Nusa Penida snorkelling.
Reef mantas use the manta sites year-round in the long-term study, and the north-west monsoon, December to January, brings poor weather that limits access to them, Germanov and colleagues state. The Manta Point page weaves the manta months against the swell.
The sea around Nusa Penida in three figures
-
laut sea
26°C (79°F) in August
Coolest monthly mean of the sea surface in the strait.
-
ombak waves
34% of July days
Waves in BMKG's high band or above off the south coast.
-
hujan rain
200 mm in January
Mean rain at Nusa Penida in the wettest month.
pulau island
Nusa Lembongan weather, and Nusa Ceningan
Nusa Lembongan and Nusa Ceningan lie a few kilometres west of Nusa Penida, across a narrow channel, so the air is the same: the picker's highs, lows and humidity hold for all three. Rain differs a little because the satellite rain grid is finer. October shows the biggest gap, 85 mm on Lembongan against 55 mm on Penida; in most months the two sit close.
The sea matters more on Lembongan than the rain. The island faces the Badung Strait, the same water as the Sanur crossing, and its surf breaks work with the swell that the dry months bring. The Lembongan surf page sets the breaks against the months, and the Nusa Lembongan guide covers the rest of the island.
Crossing between the islands is short, but it is still open water; the Nusa Penida map shows where each place sits.
pelabuhan harbour
Check the forecast before you go
Averages say how likely a month is; the forecast says what the next days hold. BMKG forecasts the Sanur crossings under its Selat Badung (Badung Strait) sea area, and the water east of Nusa Penida, toward Padang Bai, under the southern Lombok Strait. The Badung Strait forecast is issued by Balai Besar MKG Wilayah III (Jl. Raya Tuban, Badung) and runs 3 days ahead on the BMKG maritime site.
On the island, the swell matters at the cliff-edge pools: the Angel's Billabong page sets its pool against the south-coast swell month by month. Plan the open-water parts of your trip for the calmer days of your stay, and the beaches and viewpoints for the rest.
pertanyaan questions
Nusa Penida weather questions
What is the best month to visit Nusa Penida?
It depends on what you fear more, rain or waves. May to October brings the least rain, with August the driest at 15 mm, but the same months bring the biggest swell on the strait and the south coast. December to March is wettest. April, May, October and November sit in between: less rain than December to March and less south-coast swell than June to September.
When is the rainy season on Nusa Penida?
Official advice gives slightly different months. The UK FCDO gives Indonesia's rainy season as October to March, Smartraveller the wet season as October to April. On the islands' rain record, January is wettest with 200 mm on about 18 days, and December to February bring rain on more than half the days, and March is not far behind.
Are boats to Nusa Penida cancelled in bad weather?
They can be. The harbour master may refuse or postpone sailing approval for weather under rule PM 28/2022, and several Sanur operators reserve the right to cancel on the harbour master's direction. Semaya One states its weather cancellations are uncommon and fall mainly in January to March. Keep a spare day before a flight home.
How warm is the sea at Nusa Penida?
Warm all year. The satellite mean of the sea surface in the strait runs from 26°C (79°F) in August to 29°C (84°F) in April. Below the surface at Crystal Bay it can be cooler: a reef logger there gave monthly means of 24.6 to 27.8 °C, with upwelling peaking in August to September.
Is the weather on Nusa Lembongan the same as on Nusa Penida?
Almost. One climate grid cell covers Nusa Penida, Nusa Lembongan and Nusa Ceningan, so highs, lows and humidity are the same. Rain differs a little: in October Lembongan's record shows 85 mm against 55 mm on Penida. Both islands face the same strait for the crossing from Sanur.
Sources
- Smartraveller states high wave events can happen throughout Indonesia's coastal regions, including between islands. Smartraveller (Australian Government, DFAT), Indonesia travel advice, updated 21 October 2026, 2026-10-21.
- Smartraveller states Indonesia's wet season usually runs from October to April. Smartraveller (Australian Government, DFAT), Indonesia travel advice, updated 21 October 2026, 2026-10-21.
- The US State Department's 2026 travel guidance states Indonesia's rainy season runs from November to March or April and the dry season from June to October. US Department of State, Indonesia Travel Advisory and travel guidance (advisory issued 7 July 2026, guidance issued 9 July 2026), 2026-07-09.
- The UK FCDO states Indonesia's rainy season usually runs from October to March and Bali can suffer severe localised flooding. UK FCDO, Indonesia travel advice, Safety and security (updated 18 September 2026), 2026-09-18.
- Semaya One states weather cancellations are uncommon and happen mainly in the rainy season from January to March. Semaya One Fast Ferry, FAQ.
- Several Sanur operators reserve the right to cancel without liability on direction of the Indonesian Government and/or the Harbour Master (Arjuna, El Rey, Wijaya Buyuk, Semaya One, Golden Queen, D'Stars). Operators' terms pages (Arjuna, El Rey, Wijaya Buyuk, Semaya One, Golden Queen, D'Stars).
- Germanov et al. (2019) state the north-west monsoon, which brings poor weather and limits access to the manta sites, runs. Germanov et al., Frontiers in Marine Science 6:215, 2019, 2019-05-01.
- Tito and Susilo (2017) found upwelling at Crystal Bay (water below 25 °C) peaks in. Tito and Susilo, IOP Conference Series: Earth and Environmental Science 55:012031, 2017.
- Tito and Susilo (2017) measured monthly mean sea temperature at Crystal Bay (logger at 8 m, June 2011 to December 2014) ranging. Tito and Susilo, IOP Conference Series: Earth and Environmental Science 55:012031, 2017.
- Tito and Susilo (2017) give the overall mean sea temperature at Crystal Bay (8 m, 2011-2014) as. Tito and Susilo, IOP Conference Series: Earth and Environmental Science 55:012031, 2017.
- Tito and Susilo (2017) found the warmest month at Crystal Bay (8 m, 2011-2014) was. Tito and Susilo, IOP Conference Series: Earth and Environmental Science 55:012031, 2017.
- Tito and Susilo (2017) found the coolest month at Crystal Bay (8 m, 2011-2014) was. Tito and Susilo, IOP Conference Series: Earth and Environmental Science 55:012031, 2017.
- Tito and Susilo (2017) found the coolest water at Crystal Bay, about 24 °C, with daily swings over 1.75 °C, in. Tito and Susilo, IOP Conference Series: Earth and Environmental Science 55:012031, 2017.
- Tito and Susilo (2017) found Crystal Bay water below 26 °C from boreal summer through. Tito and Susilo, IOP Conference Series: Earth and Environmental Science 55:012031, 2017.
- BMKG's high-wave warnings cover four categories; 'Gelombang Sedang' (moderate) is a significant wave height of. BMKG Maritime, Peringatan Gelombang Tinggi (high-wave warning page).
- BMKG category 'Gelombang Tinggi' (high) is a significant wave height of. BMKG Maritime, Peringatan Gelombang Tinggi (high-wave warning page).
- BMKG category 'Gelombang Sangat Tinggi' (very high) is a significant wave height of. BMKG Maritime, Peringatan Gelombang Tinggi (high-wave warning page).
- BMKG category 'Gelombang Ekstrem' (extreme) is a significant wave height of more than. BMKG Maritime, Peringatan Gelombang Tinggi (high-wave warning page).
- BMKG's Shipping Bulletin uses the Douglas Sea Scale, where 'Slight' sea is a wave height of. BMKG Maritime, Shipping Bulletin (Douglas Sea Scale table).
- BMKG's Douglas Sea Scale gives 'Moderate' sea as a wave height of. BMKG Maritime, Shipping Bulletin (Douglas Sea Scale table).
- BMKG's Douglas Sea Scale gives 'Rough' sea as a wave height of. BMKG Maritime, Shipping Bulletin (Douglas Sea Scale table).
- BMKG warns that maximum waves may reach the significant wave height multiplied by up to. BMKG Maritime, Shipping Bulletin (Douglas Sea Scale table).
- BMKG warns that wind gusts can be stronger than the stated average wind by up to. BMKG Maritime, Shipping Bulletin (Douglas Sea Scale table).
- BMKG forecasts the Badung Strait (Sanur to Nusa Penida and Nusa Lembongan crossings) as sea area. BMKG Maritime, sea area index (marine2026-data meta/area_province.json).
- BMKG forecasts the southern Lombok Strait (east of Nusa Penida, Padang Bai side) as sea area. BMKG Maritime, sea area index (marine2026-data meta/area_province.json).
- BMKG states the Badung Strait forecast is issued by. BMKG Maritime, Selat Badung area forecast (P.P.02.json).
- BMKG publishes Badung Strait forecasts ahead for a period of. BMKG Maritime, Selat Badung area forecast (P.P.02.json).
- BMKG is reported to rate sailing as high-risk for small fishing boats when wind exceeds 15 knots and waves exceed. ANTARA News Bali, 16 April 2023, quoting BMKG Wilayah III citing Pusat Meteorologi Maritim BMKG, 2023-04-16.
- BMKG is reported to rate sailing as high-risk for barges when wind exceeds 16 knots and waves exceed. ANTARA News Bali, 16 April 2023, quoting BMKG Wilayah III citing Pusat Meteorologi Maritim BMKG, 2023-04-16.
- BMKG is reported to rate sailing as high-risk for ferries when wind exceeds 21 knots and waves exceed. ANTARA News Bali, 16 April 2023, quoting BMKG Wilayah III citing Pusat Meteorologi Maritim BMKG, 2023-04-16.
- BMKG is reported to rate sailing as high-risk for large ships (cargo, cruise) when wind exceeds 27 knots and waves exceed. ANTARA News Bali, 16 April 2023, quoting BMKG Wilayah III citing Pusat Meteorologi Maritim BMKG, 2023-04-16.
- Under Ministry of Transport rule PM 28/2022 the harbour master (Syahbandar) may refuse sailing approval for weather that endangers the vessel, judged by vessel. Peraturan Menteri Perhubungan PM 28 Tahun 2022 on Sailing Approval (Surat Persetujuan Berlayar), text on pasal.id.
- PM 28/2022 lets the harbour master postpone a vessel's departure on the basis of. Peraturan Menteri Perhubungan PM 28 Tahun 2022 on Sailing Approval (Surat Persetujuan Berlayar), text on pasal.id.
- KSOP Benoa is reported (June 2025) to say it can withhold sailing approval for Sanur fast boats in bad weather until waves ease, using. ANTARA News Bali, 13 June 2025, quoting the head of KSOP Kelas II Benoa, 2025-06-13.
- The fast boat Bali Dolphin Cruise 2, sailing from Nusa Penida, capsized in the Sanur harbour entrance channel; KSOP Benoa is reported to cite BMKG wave heights at the time of. ANTARA News Bali, 5 August 2025, quoting KSOP Kelas II Benoa, 2025-08-05.
- Semaya One states weather cancellations of its crossings happen mainly in. Semaya One, FAQ.
- Waves and sea temperature by month (share of days over several years, not a forecast; wave shares count days in BMKG's moderate band, 1.25 m and up, high band, 2.5 m and up, or very high band, 4 m and up). Daily highest significant wave height: ERA5 wave reanalysis (ECMWF, Copernicus Climate Change Service; 0.5° grid) for the south coast, 1991 to 2020, and Meteo-France MFWAM (about 0.08° grid) for the Badung Strait, 2022 to 2025, both via Open-Meteo; sea surface temperature from NOAA OISST v2.1 (0.25° grid), 1991 to 2020; wave bands from BMKG. Shares of days, not a forecast
- Climate by month (highs and lows: air at sea level on a model grid, not a weather station). NASA POWER (MERRA-2 reanalysis) daily air temperature at 2 m (a grid cell of about 0.5 by 0.625 degrees, mostly sea, so highs and lows read like air at sea level) and humidity, and CHIRPS v2.0 daily rain, 1991 to 2020; a reanalysis and satellite grid, not a weather station
- Manta rays and ocean sunfish by month, as published research states it. Germanov et al., Frontiers in Marine Science 2019 (manta sightings January 2012 to April 2018); Tito and Susilo, IOP Conference Series 2017; Dewi et al., Jurnal Biologi Tropis 2021 (sunfish survey July to December 2019). A likelihood from past sightings, not a promise
Photographs
- Boat to Nusa Penida. Photo: JyotiPN / Wikimedia Commons, CC BY-SA 4.0
- Mount Agung from the islands. Photo: FBilula / Wikimedia Commons, CC BY 4.0
- Penida south coast. Photo: Burmesedays (Wikivoyage) / Wikimedia Commons, CC BY-SA 3.0
- Jungutbatu beach. Photo: rheins / Wikimedia Commons, CC BY 3.0
- Surf break at Lembongan. Photo: Lembongan (Wikivoyage user) / Wikimedia Commons, Public domain
