Gili Trawangan Water Temperature & Swim Forecast
Popular beach in Gili Islands, Indonesia.
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Location
Gili Trawangan on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
Check live temperature
Live water temperature is loading — refresh in a moment for a precise recommendation.
Recommendation tuned for Gili Trawangan's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.
Gili Trawangan swimming conditions summary
- Water temperature
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- Water feels
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- Swimmable today
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- Swim conditions score
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- Wetsuit needed
- Check live temperature
- Air temperature
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- Waves
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- Wind
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- UV index
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- Warmest months to swim
- January, February, March
Live water temperature is loading — refresh in a moment for a precise recommendation. Live marine data updated hourly from Open-Meteo Marine.
Frequently asked questions
Can I swim at Gili Trawangan right now?
Live data is loading. Use the 7-day forecast above to plan your swim — conditions above 22°C are comfortable for most swimmers.
What will the sea temperature be at Gili Trawangan next week?
Based on long-term August averages and the latest marine model, expect the sea around Gili Trawangan to sit close to 27.0°C over the next 7 days. Check the live 7-day chart above for the exact daily outlook.
When is the best month to swim at Gili Trawangan?
January – February – March are typically the warmest months to swim at Gili Trawangan, with sea temperatures at their seasonal peak.
Can I swim at Gili Trawangan today?
Live data is loading. In summer, this beach typically offers comfortable swimming conditions.
- • Located in West Nusa Tenggara, Indonesia (Bali Sea).
- • Family friendly with calm, accessible water.
- • Live data refreshed hourly from Open-Meteo Marine.
Monthly sea temperature averages
Tap any month to see what to expect — based on regional climatology.
Best time to swim in Gili Trawangan
The sea in Gili Trawangan 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 August at around 27°C, when cold-water swimmers dominate the coast.
Gili Trawangan sits in the Southern Hemisphere, so the warmest sea coincides with the December–February summer and the coolest with July–August.
Gili Trawangan sea temperature history
Long-term climatology for Gili Trawangan shows an annual mean sea temperature of 29°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 Gili Trawangan, 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.
Gili Trawangan sea temperature: frequently asked questions
What is the warmest month to swim in Gili Trawangan?
January is the warmest month in Gili Trawangan, when the sea averages about 29°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Gili Trawangan?
The coldest month in Gili Trawangan is typically August, when the water averages around 27°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Gili Trawangan without a wetsuit?
The main swimming season in Gili Trawangan 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 Gili Trawangan?
Gili Trawangan 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 Gili Trawangan?
The long-term annual mean sea temperature in Gili Trawangan is about 29°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Gili Trawangan?
The live reading at the top of this page shows the current sea temperature in Gili Trawangan, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Year-round sea temperature
Best swim months: Jan – Feb – Mar – Apr – May – Jun – Jul – Aug – Sep – Oct – Nov – Dec
| Month | Sea | Comfort |
|---|---|---|
| Jan ⭐ | 29°C | Hot |
| Feb | 29°C | Hot |
| Mar | 29°C | Hot |
| Apr | 29°C | Hot |
| May | 29°C | Hot |
| Jun | 28°C | Hot |
| Jul | 28°C | Hot |
| Aug | 27°C | Hot |
| Sep | 28°C | Hot |
| Oct | 28°C | Hot |
| Nov | 29°C | Hot |
| Dec | 29°C | Hot |
Nearby beaches
The closest coastline, with live water temperatures.