SeasonMapGili Trawangan (Gili Islands) weather in December
Indonesia
December in Gili Trawangan: sweltering, soaked, with clean air — fine if you can take 26 rainy days.
#10 of 12 months in Gili Trawangan · #663 of 1383 destinations to visit in December · comfort 72/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Gili Trawangan in December
Other months in Gili Trawangan
Forum posters describe January as classified rainy season but consistently push back on treating that as a reason to avoid it - it's never raining all the time here, with showers typically lasting just an hour or two in the evening before clearing back to sun. Posters report a real range of experiences, from a little overcast with evening tropical rain but plenty of sun overall, to visits with barely any rain at all. Posters note late January can bring more wind, and diving visibility can dip slightly compared to the driest months, though not enough to spoil a dive - and unlike the choppier seas of July and August, fast-boat crossings to and from the Gilis stay comparatively smooth this time of year.
Gili Trawangan's forum calls July and August the pick of the year weather-wise, with regulars flagging late July as the point high season really kicks in — expect the busiest boats and beaches from here through September. The trade-off for the reliable weather is the crowds, so regulars suggest booking accommodation ahead.
Add your own note from Gili Trawangan's card on the map.
Gili Trawangan climate normals — December
| Daytime high | 29°C / 84°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 78°F | |
| Feels like (high) | 35°C / 95°F | |
| Sea temperature | 30°C / 86°F | ♨️ bath-warm |
| Rainfall | 227 mm / 8.9 in | ⛈ soaked |
| Rainy days | 26 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 9.7 h/day | |
| Daylight | 12.6 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Gili Trawangan in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsChristmas and New Year peak, Year-end break in Indonesia, school holidays in 5 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Gili Trawangan's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherGili Trawangan's weather peaks July–September, best around August.
Best weatherFair weatherToughest weather
What's on in Gili Trawangan in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Northwest monsoon
15 Nov – 31 Mar · usuallyRain comes in heavy evening bursts and the wind swings onto the exposed side, which makes the public boat from Bangsal a wet ride. Half the island's bars run on skeleton hours.
- Holiday
Christmas and New Year peak
18 Dec – 5 JanChristmas & New YearCrowdedBook earlyThe one fortnight of the wet season that sells out. Fast boats add sailings, and rooms go at rates the rest of the low season never sees. Source ↗
- Season
Wet season
MonsoonRisk26 rainy days and about 227 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Gili Trawangan — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Gili Trawangan?
Gili Trawangan in December — FAQ
- Is December a good time to visit Gili Trawangan?
- December in Gili Trawangan: sweltering, soaked, with clean air — fine if you can take 26 rainy days. It ranks #10 of 12 months for Gili Trawangan on SeasonMap's comfort score (72/100).
- What is the weather like in Gili Trawangan in December?
- In December, Gili Trawangan averages a daily high of 28.7°C and a low of 25.3°C, with about 227.1 mm of rain over roughly 26.2 rainy days.
- What is the air quality in Gili Trawangan in December?
- Gili Trawangan has a mean US Air Quality Index of about 35 in December.
Other months in Gili Trawangan
Compare Gili Trawangan in December
Warmer or cooler than Gili Trawangan in December
Similar destinations in Southeast Asia — December
Within 300 km: Nusa Penida's Bali tourist levy on 1 Jan – 31 Dec, and Denpasar's Bali tourist levy on 1 Jan – 31 Dec.