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Gili Trawangan weather & best time to visit

Sun, sea & sand

Gili Trawangan at a glance

Best time
May – Oct
Warmest month
Oct · 31°
Warmest sea
Apr · 29.4°
Sunshine a year
2,320 h
Rain a year
2,342 mm
Climate
Tropical
Time zone
UTC+8
Elevation
9 m

Climate in Gili Trawangan

Gili Trawangan has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. October is the warmest month with average highs of 31 °C, while January is the coolest at 29 °C. With around 2,320 hours of sunshine a year, Gili Trawangan is sunny; August is the sunniest month with 7.7 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Gili Trawangan

The best time to visit Gili Trawangan is from May to October. For a beach holiday – sea from 21 °C, warm and mostly dry – go from May to October. The rainy season is from November to April; the wettest month is December with 406 mm.

Gili Trawangan through the seasons

How the weather changes over the seasons, with averages for each.

Gili Trawangan in the dry season

May – Oct

89

Excellent

  • 31 °C by day
  • Sea 28 °C
  • 7.2 h of sun a day
  • 43 rainy days in all

Gili Trawangan in the rainy season

Nov – Apr

68

Good

  • 29–31 °C by day
  • Sea 29 °C
  • 5.5 h of sun a day
  • 158 rainy days in all

Which month for what?

Beach & swimming

May – Oct

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

No month

15–28 °C and not too much rain

Rainy months

Nov – Apr

Rainy season or more than 12 rainy days

Find your perfect month

Tell us what you like and we rate every month in Gili Trawangan for you.

Swimming in the sea
Sunshine
Little rain

Your best months: June – August

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

81

Holiday weather in October

Excellent

Best time to visit: May – October

Good forBeach & swimming

A typical day in October

  1. Morning, 08:00: about 27°
  2. Midday, 13:00: about 31°
  3. Afternoon, 16:00: about 31°
  4. Evening, 20:00: about 28°
  5. Night, 23:00: about 26°

05:5318:10

Warm enough for a T-shirt in the evening.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 05:40–06:21 · evening 17:42–18:23
Blue hour
Morning 05:32–05:40 · evening 18:23–18:31

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Gili Trawangan compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs stay at about 31° from start to end. The sea warms from 28° to 29°. The days get 0.2 h longer.

Early or late October?
October1 Oct31 Oct
Daytime high31°31°
Night-time low24°25°
Sea28°29°
Daylight12.2 h12.4 h

What is the weather like in Gili Trawangan in October?

In October, Gili Trawangan is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 28.7 °C – lovely and warm for swimming. The sun shines for around 7.3 hours a day. Rain is frequent, with about 12 rainy days and 105 mm in total. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is an excellent month for a holiday in Gili Trawangan.

More details for October

Daylight
12 h 17 min05:53 – 18:10
UV index
14 · extremeclear sky, noon (estimate)All months
Muggy days
31 daysdew point 18 °C or moreAll months
Wind
9 km/haverage daily peakAll months
Cloud cover
58 %on averageAll months
Hot days
28 days30 °C or moreAll months
Time zone
UTC+8offset from UTC

How the score comes together

  • Temperatureweight 35 %96 %
  • Seaweight 25 %100 %
  • Sunshineweight 20 %72 %
  • Few rainy daysweight 20 %43 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in October

  • Swimwear
  • Sunscreen
  • Sunglasses & sun hat
  • Light, breathable clothes
  • Water bottle – drink plenty
  • Insect repellent
  • Rain jacket or umbrella

Compare two months in Gili Trawangan

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

August has the better holiday weather in Gili Trawangan: score 96 against 81. Daytime highs are about the same. The sea is 1 °C cooler in August. August has 9 fewer rainy days.

October vs August, Gili Trawangan
MonthOctoberAugust
Holiday weather score8196better
Daytime high31°31°
Night-time low25°23°
Sea28.7°27.7°
Sunshine7.3 h7.7 h
Rainy days123better
Rainfall105 mm12 mmbetter
Muggy days3130better

Based on the climate averages 1996–2025.

Gili Trawangan month by month

The typical weather for every month at a glance.

66January29° · Sea 29° · 4.9 h

In January, Gili Trawangan is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 28.7 °C – lovely and warm for swimming. Expect around 4.9 hours of sunshine a day. It is the rainy season: rain falls on about 29 days, totalling 367 mm. The air is often humid and muggy. All in all, January is a good month for a holiday in Gili Trawangan.

Gili Trawangan in January
67February29° · Sea 29° · 5.1 h

In February, Gili Trawangan is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 28.6 °C – lovely and warm for swimming. Expect around 5.1 hours of sunshine a day. It is the rainy season: rain falls on about 27 days, totalling 346 mm. The air is often humid and muggy. All in all, February is a good month for a holiday in Gili Trawangan.

Gili Trawangan in February
68March30° · Sea 29° · 5.5 h

In March, Gili Trawangan is hot: daytime highs average 30 °C, and even at night it stays warm at around 25 °C. The sea averages 28.8 °C – lovely and warm for swimming. Expect around 5.5 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 351 mm. On about 14 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, March is a good month for a holiday in Gili Trawangan.

Gili Trawangan in March
71April31° · Sea 29° · 6.2 h

In April, Gili Trawangan is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.4 °C – almost as warm as a bath. Expect around 6.2 hours of sunshine a day. It is the rainy season: rain falls on about 21 days, totalling 250 mm. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a good month for a holiday in Gili Trawangan.

Gili Trawangan in April
82May31° · Sea 29° · 7.0 h

In May, Gili Trawangan is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.3 °C – almost as warm as a bath. The sun shines for around 7.0 hours a day. Rain is frequent, with about 12 rainy days and 94 mm in total. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is an excellent month for a holiday in Gili Trawangan.

Gili Trawangan in May
89June31° · Sea 29° · 7.1 h

In June, Gili Trawangan is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 28.7 °C – lovely and warm for swimming. The sun shines for around 7.1 hours a day. Rain falls on about 7 days, adding up to 51 mm. On about 24 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is an excellent month for a holiday in Gili Trawangan.

Gili Trawangan in June
93July31° · Sea 28° · 7.0 h

In July, Gili Trawangan is hot: daytime highs average 31 °C, and even at night it stays warm at around 23 °C. The sea averages 28.1 °C – lovely and warm for swimming. The sun shines for around 7.0 hours a day. Rain is rare: about 5 days bring 33 mm in total. On about 25 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is an excellent month for a holiday in Gili Trawangan.

Gili Trawangan in July
96August31° · Sea 28° · 7.7 h

In August, Gili Trawangan is hot: daytime highs average 31 °C, and even at night it stays warm at around 23 °C. The sea averages 27.7 °C – lovely and warm for swimming. The sun shines for around 7.7 hours a day. Rain is rare: about 3 days bring 12 mm in total. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is an excellent month for a holiday in Gili Trawangan.

Gili Trawangan in August
93September31° · Sea 28° · 7.3 h

In September, Gili Trawangan is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sea averages 28.0 °C – lovely and warm for swimming. The sun shines for around 7.3 hours a day. Rain is rare: about 4 days bring 35 mm in total. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is an excellent month for a holiday in Gili Trawangan.

Gili Trawangan in September
81October31° · Sea 29° · 7.3 h

In October, Gili Trawangan is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 28.7 °C – lovely and warm for swimming. The sun shines for around 7.3 hours a day. Rain is frequent, with about 12 rainy days and 105 mm in total. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is an excellent month for a holiday in Gili Trawangan.

Gili Trawangan in October
72November31° · Sea 29° · 6.5 h

In November, Gili Trawangan is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sea averages 29.3 °C – almost as warm as a bath. The sun shines for around 6.5 hours a day. It is the rainy season: rain falls on about 23 days, totalling 292 mm. On about 20 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is a good month for a holiday in Gili Trawangan.

Gili Trawangan in November
66December29° · Sea 29° · 4.7 h

In December, Gili Trawangan is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 29.1 °C – almost as warm as a bath. Expect around 4.7 hours of sunshine a day. It is the rainy season: rain falls on about 29 days, totalling 406 mm. On about 8 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is a good month for a holiday in Gili Trawangan.

Gili Trawangan in December

Climate in detail

Year & climate table

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Gili Trawangan

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Warm 20–24°
  • Hot 24° and more
  • muggy month (15+ muggy days)

HotOctober: nights around 25°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 31 days (dew point 18 °C or more).

The coolest nights are in August (23°), the warmest in April (25°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) all year, on about 362 days a year.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 31°Night 25°Sea 29°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan6629°25°28.7°4.9 h29367
FebruaryFeb6729°25°28.6°5.1 h27346
MarchMar6830°25°28.8°5.5 h28351
AprilApr7131°25°29.4°6.2 h21250
MayMay8231°25°29.3°7.0 h1294
JuneJun8931°24°28.7°7.1 h751
JulyJul9331°23°28.1°7.0 h533
AugustAug9631°23°27.7°7.7 h312
SeptemberSep9331°24°28.0°7.3 h435
OctoberOct8131°25°28.7°7.3 h12105
NovemberNov7231°25°29.3°6.5 h23292
DecemberDec6629°25°29.1°4.7 h29406

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

8.35° S, 116.04° E · 9 m · Asia/Makassar

Sea temperature
Swimming calendar

Sea temperature in Gili Trawangan

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October28.7°Cwarm

8 in 10 years: 28.2 – 29.3 °C

Swimming season: all year

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 28.7°8 in 10 years 28.2° – 29.3°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Gili Trawangan ranges from 27.7 °C in August to 29.4 °C in April. At 20 °C and more, the sea is warm enough for swimming all year round.

The sea temperature varies from year to year: in April, eight out of ten years were between 28.9 and 30.0 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan28.7°28.2°29.5°warm
FebruaryFeb28.6°27.9°29.4°warm
MarchMar28.8°28.2°29.6°warm
AprilApr29.4°28.9°30.0°very warm
MayMay29.3°28.8°29.7°very warm
JuneJun28.7°28.3°29.2°warm
JulyJul28.1°27.4°28.8°warm
AugustAug27.7°27.0°28.4°warm
SeptemberSep28.0°27.4°28.7°warm
OctoberOct28.7°28.2°29.3°warm
NovemberNov29.3°28.9°29.7°very warm
DecemberDec29.1°28.5°29.7°very warm
Sunshine
Sunshine

Sunshine hours in Gili Trawangan

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,320 hours
Sunniest month
Aug · 7.7 h a day
Least sunshine
Dec · 4.7 h a day
OctoberSunshine 7.3 hDaylight 12.3 hShare of daylight 59 %
SunshineDaylight

In October, the sun shines for about 7.3 of 12.3 hours of daylight in Gili Trawangan, 59 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain
Rain

Rain in Gili Trawangan: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
2,342 mm on 201 days
Wettest month
Dec · 406 mm
Driest month
Aug · 12 mm
OctoberRainy days 12Rainfall 105 mm

In October, Gili Trawangan has about 12 rainy days with 105 mm of rain in total.

UV index
Sun protection

UV index in Gili Trawangan

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
14 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.

The sun is strongest in October (UV 14).

Minutes until sunburn in October

Very fair skin
about 10 min
Fair skin
about 10 min
Light brown skin
about 15 min
Olive skin
about 20 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds
Wind & clouds

Wind and clouds in Gili Trawangan

How breezy and how cloudy Gili Trawangan is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
9 km/h · light breeze or less
Windiest month
Jan · 11 km/h
Calmest month
Apr · 7 km/h
OctoberWind 9 km/hBeaufort 2
20
WindBeaufort 4

In October, the wind in Gili Trawangan typically peaks at 9 km/h during the day: Beaufort 2, light breeze or less.

Breezy months for windsurfing and kiting

The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
68 % · mostly cloudy
Clearest month
Aug · 50 %
Cloudiest month
Jan · 90 %
OctoberCloud cover 58 %Sunshine 7.3 h

In October, cloud covers on average 58 % of the sky over Gili Trawangan: variable cloud, with about 7.3 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity
Heat & humidity

Heat and humidity in Gili Trawangan

How often the day gets hot in Gili Trawangan (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
233 days
Hottest month
Oct · 31 °C
Hot months
Apr – Nov

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 28Daytime high 31 °C

In October, Gili Trawangan has about 28 hot days, with an average daytime high of 31 °C: hot and muggy. Plan outdoor activities for the morning and evening, drink a lot and take breaks in the cool.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Planning a trip to Gili Trawangan

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Gili Trawangan in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Gili Trawangan has its best school-holiday weather during the summer holidays (score 95) and its weakest during the Christmas holidays (score 66).

  • Easter holidays

    Mar – Apr

    70

    Good

    • 30 °C by day
    • Sea 29 °C
    • 6.0 h of sun a day
    • 23 rainy days a month

    Keep in mind: Frequent rain

  • May half-term

    May – Jun

    83

    Excellent

    • 31 °C by day
    • Sea 29 °C
    • 7.0 h of sun a day
    • 11 rainy days a month

    Good for: Beach & swimming

  • Summer holidays

    Jul – Aug

    95

    ExcellentBest holidays

    • 31 °C by day
    • Sea 28 °C
    • 7.5 h of sun a day
    • 3 rainy days a month

    Good for: Beach & swimming

  • October half-term

    Oct

    81

    Excellent

    • 31 °C by day
    • Sea 29 °C
    • 7.3 h of sun a day
    • 12 rainy days a month

    Good for: Beach & swimming

  • Christmas holidays

    Dec – Jan

    66

    Good

    • 29 °C by day
    • Sea 29 °C
    • 4.8 h of sun a day
    • 29 rainy days a month

    Keep in mind: Frequent rain

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 15 h 35 min
Distance
12,550 km
Time zone
UTC+8
Jet lag
About 7 days (7 h east)

Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.

Most routes need a change of planes, which adds time.

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Good to know: Indonesia

Currency
Indonesian Rupiah (IDR)
Language
Indonesian
Sockets
Type C, F · 127 V
Traffic
Drives on the left
Dialling code
+62
Emergency number
112

UK plugs need a travel adapter

Only 127 V: chargers marked 100–240 V work, other devices need a voltage converter.

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Compare & alternatives

Compare with another place
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Gili Trawangan compared

Put Gili Trawangan side by side with another destination.

Nearby:
Compare with home:

Gili Trawangan vs Gili Air

In October Gili Trawangan has the better holiday weather (score 81 vs 76). During the day Gili Air is 1 °C warmer than Gili Trawangan. The sea is about equally warm.

Gili Trawangan vs Gili Air, in October
in OctoberGili TrawanganGili Air
Holiday weather score8176
Daytime high31°32°
Sea29°29°
Sunshine7 h7 h
Rainy days1212
Best timeMay – OctMay – Sep

Through the year

OctoberGili Trawangan 31°Gili Air 32°
Gili TrawanganGili Air
Go to Gili Air
Best places in the country
Ranking

Indonesia in October: the best places

In October, Gili Trawangan ranks 3 among the 31 nearest destinations in this country.

  1. Komodo Island30°28°99
  2. 2Maumere32°29°88
  3. 3Gili TrawanganThis page31°29°81
  4. 4Senggigi32°29°79
  5. 5Gili Air32°29°76
  6. 6Sanur29°28°76
  7. 7Nusa Dua29°27°76
  8. 8Kuta29°27°76
All destinations: Indonesia
Places nearby

Near Gili Trawangan

Other destinations close by.

Places with a similar climate

Places with a climate like Gili Trawangan

Destinations whose weather through the year is closest to Gili Trawangan's – good alternatives.

  1. 81 % similar58Labuan BajoIndonesia30°29°Best time: Jun – Sep
  2. 80 % similar88MaumereIndonesia32°29°Best time: May – Oct
  3. 78 % similar31SemarangIndonesia34°30°Best time: Jul – Aug
  4. 73 % similar54DiliTimor-Leste33°29°Best time: Jun – Aug

Frequently asked questions about Gili Trawangan

When is the best time to visit Gili Trawangan?

The best time to visit Gili Trawangan is from May to October. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Gili Trawangan?

The sea temperature in Gili Trawangan ranges from 27.7 °C in August to 29.4 °C in April. At 20 °C and more, the sea is warm enough for swimming all year round.

Can you swim in Gili Trawangan in October?

Yes. In October the sea averages 28.7 °C – lovely and warm for swimming.

What is the warmest month in Gili Trawangan?

October is the warmest month, with average highs of 31 °C and nights around 25 °C. January is the coolest month at 29 °C.

When does it rain most in Gili Trawangan?

The rainy season is from November to April; the wettest month is December with 406 mm. The driest month is August with 12 mm.

How many hours of sunshine does Gili Trawangan get?

Gili Trawangan gets around 2,320 hours of sunshine a year. The sunniest month is August with 7.7 hours a day; in December there are 4.7 hours a day.

What time zone is Gili Trawangan in?

Gili Trawangan is on UTC+8 all year.

How long is the flight from London to Gili Trawangan?

A nonstop flight from London to Gili Trawangan takes about 15 h 35 min, for a straight-line distance of about 12,550 km. Most routes need a change of planes, which adds time.

Which school holidays are best for Gili Trawangan?

Gili Trawangan has its best school-holiday weather during the summer holidays (score 95) and its weakest during the Christmas holidays (score 66). Holiday ratings (0–100): Easter holidays 70, May half-term 83, summer holidays 95, October half-term 81, Christmas holidays 66.