Gili Trawangan weather in December

In December, Gili Trawangan sees average daytime highs of 28°C and overnight lows near 26°C, with 232 mm of rain across 25.4 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 7% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of December to 12 h 30 min by month's end. Set against the rest of the year, December is Gili Trawangan's 10th-clearest and 6th-windiest month. For the whole year in context, see Gili Trawangan's year-round climate.

Daytime high
28°
5th warmest
Overnight low
26°
9th coldest
Rainfall
232 mm
25.4 wet days
Daylight
12 h 30 min
5:58 AM – 6:27 PM
Cloud cover
83%
10th clearest
Wind
11 km/h
6th windiest
Solar energy
5.6 kWh/m²
Travel score
4.0
out of 10

Gili Trawangan is town.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical December day in Gili Trawangan reaches about 28°C in the afternoon and slips back to 26°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, December runs on par with November and on par with January.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282726
292726
302726
312726

How December really feels in Gili Trawangan

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Gili Trawangan weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 26°25726.312.43.8
Feb27° / 26°23225.112.33.7
Mar28° / 26°19524.712.14.2
Apr28° / 27°11319.811.84.7
May28° / 27°4411.411.66.0
Jun28° / 26°317.511.57.0
Jul27° / 25°225.511.67.5
Aug27° / 25°103.511.77.9
Sep27° / 25°133.1127.8
Oct28° / 26°338.212.26.8
Nov28° / 27°10518.112.44.9
Dec28° / 26°23225.412.54.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 84%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22575
32476
42377
52278
62080
72080
81882
91783
101783
111783
121684
131585
141585
151486
161387
171387
181387
191387
201387
211387
221387
231288
241288
251288
261288
271387
281288
291288
301288
311288

Chance of precipitation in December

Any precipitation

Gili Trawangan gets around 232 mm of rain over 25.4 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 81% and peaks near 83% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
175
276
376
477
578
678
779
880
980
1081
1182
1282
1382
1483
1583
1683
1783
1883
1983
2083
2183
2283
2383
2483
2583
2683
2783
2883
2983
3083
3183

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the oppressive band about 59% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
15347
25446
35347
45347
55347
65347
75347
85347
95347
105446
115446
125446
135545
145644
155743
165842
175941
186040
196139
206238
216238
226337
236436
246535
256535
266634
276733
286733
296832
306832
316931

Wind in December

Winds average 11 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 30 min at the start of December to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 5:52 AM to 6:05 AM, and sunset from 6:19 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:526:19
212.55:526:20
312.55:536:20
412.55:536:21
512.55:536:21
612.55:546:22
712.55:546:22
812.55:546:23
912.55:556:23
1012.55:556:24
1112.55:556:24
1212.55:566:25
1312.55:566:25
1412.55:576:26
1512.55:576:26
1612.55:586:27
1712.55:586:27
1812.55:586:27
1912.55:596:28
2012.55:596:28
2112.56:006:29
2212.56:006:29
2312.56:016:30
2412.56:016:30
2512.56:026:31
2612.56:026:31
2712.56:036:32
2812.56:036:32
2912.56:046:33
3012.56:046:33
3112.56:056:33

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.6 kWh/m².

For context, solar energy here swings from a low near 5.32 kWh/m² to a high of 7.03 kWh/m² in October across the year — December's 5.6 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in December

Hazard calendar for Gili Trawangan

In seasonPeak

In December, Gili Trawangan sits inside its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.

Gili Trawangan sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Gili Trawangan's monsoon runs December–March, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Gili Trawangan?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.0
Sightseeing
10th-best month of the year
4.3
Beach & pool
10th-best month of the year

December is a reasonable time to visit Gili Trawangan for sightseeing.

What to pack for Gili Trawangan in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Gili Trawangan sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Gili Trawangan in December

The nearest coast averages about 29°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in April at about 29°C and coldest in August near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul28Warm
Aug28Warm
Sep28Warm
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Gili Trawangan in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gili Trawangan peaks around March 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 12UV 14Jun 18UV 9
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar14Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul10Very high
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec13Extreme

Air quality in Gili Trawangan in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Gili Trawangan is worst in October — around 22 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (April, 13 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 2022 µg/m³Apr 1613 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb14Moderate
Mar14Moderate
Apr13Moderate
May14Moderate
Jun14Moderate
Jul13Moderate
Aug14Moderate
Sep18Moderate
Oct22Moderate
Nov21Moderate
Dec15Moderate
Location & terrain

Where is Gili Trawangan?

Gili Trawangan sits at 8.3°S, 116.0°E, 0 m above sea level, in Indonesia. The nearest listed city is Lombok, 27 km away.

Topography around Gili Trawangan

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Gili Trawangan.

Within 3 km, the terrain around Gili Trawangan has only modest variations in elevation — a maximum elevation change of 75 m around an average of 1 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 853 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,635 m.

The land around Gili Trawangan is covered by water (84%) within 3 km, water (81%) within 16 km, and water (63%) and trees (27%) within 80 km.

3 km
75 m
16 km
853 m
80 km
3,635 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Lombok 27 km · Praya 47 km · Amlapura 48 km · Amlapura city 49 km · Bedugul 50 km · Selong 64 km · Klungkung 73 km · Ubud 87 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Gili Trawangan (-8.349°, 116.037°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).