Bali is a coastal area of Indonesia on the Indian Ocean, with 37 tracked beaches. The sea here ranges from about 27°C in the coolest month to 29°C at the summer peak, with roughly 12 months a year sitting above 20°C — the level most swimmers describe as pleasant without a wetsuit. Use the beach list below to check the current sea temperature at each spot before you head out.
Bali
37 tracked beaches in Bali, Indonesia, with live Indian Ocean temperatures.
Sea
Indian Ocean
Avg sea temp now
29.0°C
Best months
Year-round
Best time to swim in Bali
The sea in Bali peaks in January, when the water averages around 29°C.
The main swimming season runs from January – December, when surface temperatures stay comfortable for extended sessions.
On average, 12 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
The coldest month is typically July at around 27°C, when cold-water swimmers dominate the coast.
Bali sits in the Southern Hemisphere, so the warmest sea coincides with the December–February summer and the coolest with July–August.
Bali sea temperature history
Long-term climatology for Bali shows an annual mean sea temperature of 28°C, ranging from 27°C in winter to 29°C at the summer peak.
The seasonal swing is roughly 2°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Bali, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Jan
29°C
Feb
29°C
Mar
29°C
Apr
29°C
May
29°C
Jun
28°C
Jul
27°C
Aug
27°C
Sep
27°C
Oct
28°C
Nov
29°C
Dec
29°C
Values are area averages; individual beaches vary by exposure and depth.
Bali sea temperature: frequently asked questions
What is the warmest month to swim in Bali?
January is the warmest month in Bali, when the sea averages about 29°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Bali?
The coldest month in Bali is typically July, when the water averages around 27°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Bali without a wetsuit?
The main swimming season in Bali runs from January – December — about 12 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Bali?
Bali stays warm year-round, so most swimmers never need a wetsuit — a rash guard is usually enough for sun and wildlife protection.
What is the average sea temperature in Bali?
The long-term annual mean sea temperature in Bali is about 28°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Bali?
The live reading at the top of this page shows the current sea temperature in Bali, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Beaches in the Bali
Ranked by current live sea temperature.
- 1Jimbaran BayJimbaran, Indonesia29.7°C
- 2Virgin Beach BaliAmed & East Bali, Indonesia29.7°C
- 3Menjangan Island BeachNorth Bali, Indonesia29.7°C
- 4Amed BeachAmed & East Bali, Indonesia29.6°C
- 5Atuh BeachNusa Penida, Indonesia29.5°C
- 6Legian BeachKuta, Indonesia29.5°C
- 7Echo BeachCanggu, Indonesia29.5°C
- 8Green Bowl BeachUluwatu, Indonesia29.5°C
- 9Batu Bolong BeachCanggu, Indonesia29.4°C
- 10Double Six BeachKuta, Indonesia29.3°C
- 11Balangan BeachJimbaran, Indonesia29.2°C
- 12Dreamland BeachPecatu, Indonesia29.1°C
- 13Melasti Beach BaliUngasan, Indonesia29.1°C
- 14Batu Belig BeachKuta, Indonesia29.1°C
- 15Nyanyi BeachCanggu, Indonesia29.1°C
- 16Mertasari BeachSanur, Indonesia29.0°C
- 17Suluban Beach UluwatuUluwatu, Indonesia29.0°C
- 18Kuta BeachKuta, Indonesia28.9°C
- 19Pandawa BeachKutuh, Indonesia28.9°C
- 20Diamond Beach PenidaNusa Penida, Indonesia28.9°C
- 21Jemeluk BeachAmed & East Bali, Indonesia28.9°C
- 22Kelingking BeachNusa Penida, Indonesia28.8°C
- 23Seminyak BeachKuta, Indonesia28.8°C
- 24Pererenan BeachCanggu, Indonesia28.7°C
- 25Tanjung Benoa BeachNusa Dua, Indonesia28.7°C
- 26Blue Lagoon Padang BaiAmed & East Bali, Indonesia28.7°C
- 27Nyang Nyang BeachPecatu, Indonesia28.6°C
- 28Sanur BeachSanur, Indonesia28.6°C
- 29Nusa Dua BeachNusa Dua, Indonesia28.6°C
- 30Padang PadangUluwatu, Indonesia28.6°C
- 31Geger BeachNusa Dua, Indonesia28.6°C
- 32Berawa BeachCanggu, Indonesia28.6°C
- 33Canggu BeachCanggu, Indonesia28.5°C
- 34Crystal BayNusa Penida, Indonesia28.5°C
- 35Bingin BeachPecatu, Indonesia28.4°C
- 36Diamond BeachNusa Penida, Indonesia28.3°C
- 37Lovina BeachNorth Bali, Indonesia28.3°C
Swimming in the Bali — FAQ
How warm is the sea in the Bali in November?
The Indian Ocean off the Bali averages about 29.0°C in November, based on long-term monthly averages for this coast.
When is the best time to swim in the Bali?
The Bali is warmest in January (around 29.0°C) and coldest in July (around 27.0°C). There are typically 12 months a year when the water sits above 22°C.
What is the average yearly sea temperature in the Bali?
Across all twelve months, the sea in the Bali averages about 28.3°C.
Do you need a wetsuit to swim in the Bali?
In peak season (around January, ~29.0°C) most swimmers are comfortable without a wetsuit. Outside summer, when the water drops toward 27.0°C, a 3/2mm to 5/4mm wetsuit is recommended.