Weather in Brunei - today, tomorrow and 14-day forecast

Right now temperatures across Brunei range from 31° to 32°. Below: today's conditions city by city, a live weather map, the 14-day outlook and month-by-month climate to help you pick the best time to travel.

Country values are the median of forecasts from 2 cities; the range shows local differences. Methodology.

Weather in Brunei's cities today

🌧️Bandar Seri Begawan 32°💧 1.5 mm 🌧️Kuala Belait 31°💧 1.3 mm

Next days in Brunei

today🌧️ 32°💧 1.4 mm

Sun☁️ 32°💧 2.1 mm

Mon☁️ 31°💧 1.1 mm

Tue🌧️ 31°💧 1.4 mm

Wed🌧️ 31°💧 3.8 mm

Thu🌧️ 31°💧 11.4 mm

Fri🌧️ 25°💧 5.1 mm

Sat🌧️ 30°💧 4.9 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Saturday 5 Sept in Brunei, the forecast high is 32°C. Typical daytime temperatures at this time of year range from 28°C to 30°C, so it will be exceptionally warm. It is warmer than 99% of similar days.

Saturday 5 Sept

32°Cexceptionally warm

usually 28°C–30°C

warmer than 99% of similar days

night: exceptionally warm rain: less rain than usual wind: exceptionally strong

Sunday 6 Sept

32°Cexceptionally warm

usually 28°C–30°C

warmer than 99% of similar days

night: exceptionally warm rain: less rain than usual wind: exceptionally strong

Monday 7 Sept

31°Cexceptionally warm

usually 28°C–30°C

warmer than 99% of similar days

night: exceptionally warm rain: less rain than usual wind: exceptionally strong

Tuesday 8 Sept

31°Cexceptionally warm

usually 28°C–30°C

warmer than 99% of similar days

night: warmer than usual rain: less rain than usual wind: exceptionally strong

Wednesday 9 Sept

31°Cexceptionally warm

usually 28°C–30°C

warmer than 99% of similar days

night: warmer than usual rain: typical rainfall wind: exceptionally strong

Thursday 10 Sept

31°Cexceptionally warm

usually 28°C–30°C

warmer than 99% of similar days

night: exceptionally warm rain: more rain than usual wind: exceptionally strong

Friday 11 Sept

25°Cexceptionally cool

usually 28°C–30°C

cooler than 99% of similar days

night: warmer than usual rain: typical rainfall wind: stronger than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 29°C by day. The coolest year was 1984 (27°C) and the warmest was 2024 (31°C). The current forecast averages 31°C - higher than in 100% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Brunei

Brunei - 14-day weather forecast infographic

Brunei 30 & 45-day weather - long-range outlook

Next 16 days · forecast

30°

around 26° at night · days with rain: 15

Weeks 3-4 · avg for September

32°

around 24° at night · rain chance 58%

Weeks 5-7 · avg for October

32°

around 24° at night · rain chance 68%

The 30 & 45-day outlook for Brunei: the next 16 days are a numerical forecast updated daily - on average 30° by day and 26° at night. Further out we rely on multi-year climate averages: around 32° in September, and about 32° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Brunei

Saturday5 September 2026

🌧️32°light rain

night 28° · evening 30° · rain 1.4300000000000002 mm · humidity 64.5% · wind 5 m/s · clouds 64.5%

Sunday6 September 2026

☁️32°overcast clouds

night 28° · evening 30° · rain 2.1399999999999997 mm · humidity 61.5% · wind 4 m/s · clouds 100%

Monday7 September 2026

☁️31°overcast clouds

night 26° · evening 28° · rain 1.05 mm · humidity 57.5% · wind 4 m/s · clouds 96%

Tuesday8 September 2026

🌧️31°light rain

night 26° · evening 30° · rain 1.365 mm · humidity 54% · wind 4 m/s · clouds 100%

Wednesday9 September 2026

🌧️31°light rain

night 26° · evening 30° · rain 3.76 mm · humidity 54.5% · wind 5 m/s · clouds 100%

Thursday10 September 2026

🌧️31°moderate rain

night 26° · evening 29° · rain 11.44 mm · humidity 62.5% · wind 4 m/s · clouds 100%

Friday11 September 2026

🌧️25°light rain

night 26° · evening 27° · rain 5.07 mm · humidity 87% · wind 3 m/s · clouds 100%

Saturday12 September 2026

🌧️30°moderate rain

night 26° · evening 29° · rain 4.890000000000001 mm · humidity 63% · wind 4 m/s · clouds 88.5%

Sunday13 September 2026

🌧️28°moderate rain

night 25° · evening 27° · rain 18.345 mm · humidity 75% · wind 2 m/s · clouds 100%

Monday14 September 2026

🌧️30°moderate rain

night 27° · evening 29° · rain 3.27 mm · humidity 65.5% · wind 4 m/s · clouds 74%

Tuesday15 September 2026

🌧️31°light rain

night 26° · evening 30° · rain 4.38 mm · humidity 66% · wind 3 m/s · clouds 56.5%

Wednesday16 September 2026

🌧️30°light rain

night 26° · evening 31° · rain 4.545 mm · humidity 61% · wind 3 m/s · clouds 94.5%

Thursday17 September 2026

🌧️29°moderate rain

night 26° · evening 28° · rain 8.01 mm · humidity 66.5% · wind 3 m/s · clouds 95%

Friday18 September 2026

🌧️24°heavy rain

night 25° · evening 25° · rain 24.945 mm · humidity 93.5% · wind 3 m/s · clouds 100%

Saturday19 September 2026

☁️28°overcast clouds

night 27° · evening 29° · rain 0.825 mm · humidity 74% · wind 4 m/s · clouds 97.5%

Sunday20 September 2026

🌧️28°moderate rain

night 28° · evening 29° · rain 3.45 mm · humidity 73.5% · wind 5 m/s · clouds 97.5%

Sea temperature - Brunei

Water today

32°C

Week avg

32°C

How's the water?

very warm

16-day sea temperature forecast:

5.09 32°C6.09 32°C7.09 32°C8.09 32°C9.09 32°C10.09 32°C11.09 32°C12.09 32°C13.09 33°C

Average sea temperature through the year:

Jan 30°CFeb 30°CMar 30°CApr 31°CMay 32°CJun 31°CJul 31°CAug 31°CSep 31°COct 31°CNov 31°CDec 31°C

Beach	Water today	Water week avg	Waves	How's the water?
Kuala Belait	32℃	32℃	0.6 m	very warm
Bandar Seri Begawan	32℃	32℃	0.4 m	very warm

Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Brunei weather through the year

Brunei - annual climate

Brunei weather month by month - when is the best time to go?

January (31°)February (31°)March (31°)April (32°)May (33°)June (32°)July (32°)August (32°)September (32°)October (32°)November (32°)December (31°)

Weather in other countries in Asia

CambodiaBhutanPeople's Republic of ChinaBangladeshHong KongBahrain

FAQ - Brunei weather

What is the weather like in Brunei today?

Today it is about 32° during the day and 28° at night, light rain.

How far ahead can I check the forecast for Brunei?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.