INSTRUMENT / SEA TEMPERATURE
Gili Trawangan Water Temperature
Updated Fri 17:05 (Asia/Makassar)
Indonesia · Forecast updated Nov 6, 2026, 17:05 UTC
Current Sea Temperature
29.9°C
85.8°F
Very warm water
Valid Nov 6, 2026, 17:05 (Asia/Makassar). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
0.3°C below
The typical November average is 30.2°C (86.4°F) from the historical baseline.
Recent trend
Warming by 0.4°C
Seven-day average: 30.3°C, versus 29.8°C in the prior seven days.
What to wear
Very warm water
Swimwear is usually enough; a rash guard adds sun protection.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions or replace the snorkel forecast.
Typical Sea Temperature Over the Year
In the historical baseline for Gili Trawangan, typical monthly averages range from about 28.4°C (83.1°F) in August to 30.2°C (86.4°F) in November.
Over the past 30 days, the average sea temperature in Gili Trawangan has been 29.5°C.
Historical baseline (full year)
Southern Hemisphere. Summer is generally December–February; winter is June–August.
Typical monthly sea-surface temperature near Gili Trawangan, calculated from hourly observations for 2022–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 28.6–30.3°C | 29.4°C / 84.9°F |
| February | 28.7–30.1°C | 29.4°C / 84.9°F |
| March | 29.4–29.9°C | 29.7°C / 85.5°F |
| April | 29.7–30.6°C | 30.1°C / 86.2°F |
| May | 29.7–30.1°C | 29.9°C / 85.8°F |
| June | 28.8–29.6°C | 29.2°C / 84.6°F |
| July | 28.6–28.8°C | 28.7°C / 83.7°F |
| August | 27.9–28.7°C | 28.4°C / 83.1°F |
| September | 28.0–29.1°C | 28.7°C / 83.7°F |
| October | 29.1–30.0°C | 29.5°C / 85.1°F |
| November | 29.8–30.7°C | 30.2°C / 86.4°F |
| December | 29.5–30.6°C | 29.9°C / 85.8°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (-8.38, 116.04). Each month is the mean of yearly monthly means; the range is the lowest and highest of those yearly monthly means. Open-Meteo methodology.
Water temperature by month
Each month uses the 2022–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
Gili Trawangan in January
Typical January water temperature near Gili Trawangan is 29.4°C (84.9°F), with yearly monthly means from 28.6–30.3°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: December 29.9°C · February 29.4°C.
Explore Gili Trawangan sea temperature in January, including swim comfort and month comparisons →
Gili Trawangan in February
Typical February water temperature near Gili Trawangan is 29.4°C (84.9°F), with yearly monthly means from 28.7–30.1°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: January 29.4°C · March 29.7°C.
Explore Gili Trawangan sea temperature in February, including swim comfort and month comparisons →
Gili Trawangan in March
Typical March water temperature near Gili Trawangan is 29.7°C (85.5°F), with yearly monthly means from 29.4–29.9°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: February 29.4°C · April 30.1°C.
Explore Gili Trawangan sea temperature in March, including swim comfort and month comparisons →
Gili Trawangan in April
Typical April water temperature near Gili Trawangan is 30.1°C (86.2°F), with yearly monthly means from 29.7–30.6°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: March 29.7°C · May 29.9°C.
Explore Gili Trawangan sea temperature in April, including swim comfort and month comparisons →
Gili Trawangan in May
Typical May water temperature near Gili Trawangan is 29.9°C (85.8°F), with yearly monthly means from 29.7–30.1°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: April 30.1°C · June 29.2°C.
Explore Gili Trawangan sea temperature in May, including swim comfort and month comparisons →
Gili Trawangan in June
Typical June water temperature near Gili Trawangan is 29.2°C (84.6°F), with yearly monthly means from 28.8–29.6°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: May 29.9°C · July 28.7°C.
Explore Gili Trawangan sea temperature in June, including swim comfort and month comparisons →
Gili Trawangan in July
Typical July water temperature near Gili Trawangan is 28.7°C (83.7°F), with yearly monthly means from 28.6–28.8°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: June 29.2°C · August 28.4°C.
Explore Gili Trawangan sea temperature in July, including swim comfort and month comparisons →
Gili Trawangan in August
Typical August water temperature near Gili Trawangan is 28.4°C (83.1°F), with yearly monthly means from 27.9–28.7°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: July 28.7°C · September 28.7°C.
Explore Gili Trawangan sea temperature in August, including swim comfort and month comparisons →
Gili Trawangan in September
Typical September water temperature near Gili Trawangan is 28.7°C (83.7°F), with yearly monthly means from 28.0–29.1°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: August 28.4°C · October 29.5°C.
Explore Gili Trawangan sea temperature in September, including swim comfort and month comparisons →
Gili Trawangan in October
Typical October water temperature near Gili Trawangan is 29.5°C (85.1°F), with yearly monthly means from 29.1–30.0°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: September 28.7°C · November 30.2°C.
Explore Gili Trawangan sea temperature in October, including swim comfort and month comparisons →
Gili Trawangan in November
Typical November water temperature near Gili Trawangan is 30.2°C (86.4°F), with yearly monthly means from 29.8–30.7°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: October 29.5°C · December 29.9°C.
Explore Gili Trawangan sea temperature in November, including swim comfort and month comparisons →
Gili Trawangan in December
Typical December water temperature near Gili Trawangan is 29.9°C (85.8°F), with yearly monthly means from 29.5–30.6°C.
Swimming and snorkeling: very warm water. Swimwear is usually enough; a rash guard adds sun protection.
Adjacent months: November 30.2°C · January 29.4°C.
Explore Gili Trawangan sea temperature in December, including swim comfort and month comparisons →
Forecast archive (growing)
These values come from hourly forecasts SnorkelForecast has stored. They cover only months with records and do not replace the historical baseline.
| Month | Min | Average | Max |
|---|---|---|---|
| June | 28.6°C / 83.5°F | 29.2°C / 84.5°F | 30.0°C / 86.0°F |
| July | 27.4°C / 81.3°F | 28.2°C / 82.8°F | 29.2°C / 84.6°F |
| August | 26.8°C / 80.2°F | 28.0°C / 82.4°F | 29.1°C / 84.4°F |
| September | 27.2°C / 81.0°F | 28.1°C / 82.6°F | 29.0°C / 84.2°F |
| October | 28.1°C / 82.6°F | 29.2°C / 84.6°F | 30.6°C / 87.1°F |
| November | 29.7°C / 85.5°F | 30.4°C / 86.7°F | 31.2°C / 88.2°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3818 hourly forecast records across 6 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Gili Trawangan
Car-free island off Lombok with turtle-filled reefs and underwater statues.
- Area
- West Nusa Tenggara
Gili Trawangan Water Temperature: Common Questions
What is the water temperature in Gili Trawangan today?
The current sea surface temperature near Gili Trawangan is 29.9°C (85.8°F). Over the last 30 days, the average has been 29.5°C.
When is the water warmest in Gili Trawangan?
The water is typically warmest in November, at around 30.2°C (86.4°F) in the 2022–2025 historical baseline.
When is the water coldest in Gili Trawangan?
The water is typically coldest in August, at around 28.4°C (83.1°F) in the same historical baseline.
Can you swim in Gili Trawangan today?
At 29.9°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Gili Trawangan.
View Snorkel Forecast →