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Weather in Kuala Belait - 14-day forecast

Detailed weather forecast for Kuala Belait, Brunei: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Kuala Belait
today🌧️ 31°💧 1.3 mm
Sun☁️ 32°💧 4.1 mm
Mon☁️ 32°💧 0.7 mm
Tue🌧️ 31°💧 0.2 mm
Wed🌧️ 31°💧 2.6 mm
Thu🌧️ 31°💧 10.3 mm
Fri🌧️ 25°💧 7 mm
Sat🌧️ 30°💧 4.1 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 Kuala Belait, the forecast high is 31°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.

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
32°Cexceptionally warm
usually 28°C–30°C
warmer than 99% of similar days
night: exceptionally warm rain: typical rainfall wind: exceptionally strong
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
31°Cexceptionally warm
usually 28°C–30°C
warmer than 99% of similar days
night: exceptionally warm rain: exceptionally dry wind: exceptionally strong
31°Cexceptionally warm
usually 28°C–30°C
warmer than 99% of similar days
night: exceptionally warm rain: typical rainfall wind: exceptionally strong
31°Cexceptionally warm
usually 28°C–30°C
warmer than 97% of similar days
night: exceptionally warm rain: more rain than usual wind: exceptionally strong
25°Cexceptionally cool
usually 28°C–30°C
cooler than 99% of similar days
night: exceptionally warm rain: typical rainfall wind: exceptionally strong

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 →
25°30°35° 1981: 28°C1982: 29°C1983: 28°C1984: 27°C1985: 29°C1986: 28°C1987: 29°C1988: 29°C1989: 29°C1990: 30°C1991: 29°C1992: 29°C1993: 28°C1994: 29°C1995: 29°C1996: 29°C1997: 29°C1998: 29°C1999: 29°C2000: 29°C2001: 29°C2002: 29°C2003: 30°C2004: 28°C2005: 29°C2006: 28°C2007: 28°C2008: 28°C2009: 30°C2010: 28°C2011: 30°C2012: 28°C2013: 28°C2014: 29°C2015: 29°C2016: 29°C2017: 29°C2018: 29°C2019: 30°C2020: 28°C2021: 29°C2022: 28°C2023: 29°C2024: 30°C2025: 28°C 2026 forecast: 31°C current forecast 31°C 198119902000201020202026
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 (30°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 - Kuala Belait

Kuala Belait - 14-day weather forecast infographic

Kuala Belait 30 & 45-day weather - long-range outlook

Next 16 days · forecast
29°
around 26° at night · days with rain: 13
Weeks 3-4 · avg for September
31°
around 24° at night · rain chance 45%
Weeks 5-7 · avg for October
31°
around 24° at night · rain chance 57%
The 30 & 45-day outlook for Kuala Belait: the next 16 days are a numerical forecast updated daily - on average 29° by day and 26° at night. Further out we rely on multi-year climate averages: around 31° in September, and about 31° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Kuala Belait

Saturday5 September 2026
🌧️31°light rain
sunrise 06:16 · sunset 18:27 · night 27° · evening 29° · rain 1.34 mm · humidity 64% · wind 6 m/s · clouds 66%
Sunday6 September 2026
☁️32°overcast clouds
sunrise 06:16 · sunset 18:27 · night 27° · evening 29° · rain 4.1 mm · humidity 60% · wind 4 m/s · clouds 100%
Monday7 September 2026
☁️32°overcast clouds
sunrise 06:16 · sunset 18:27 · night 26° · evening 28° · rain 0.66 mm · humidity 57% · wind 4 m/s · clouds 94%
Tuesday8 September 2026
🌧️31°light rain
sunrise 06:16 · sunset 18:26 · night 26° · evening 30° · rain 0.15 mm · humidity 56% · wind 4 m/s · clouds 100%
Wednesday9 September 2026
🌧️31°light rain
sunrise 06:16 · sunset 18:26 · night 26° · evening 30° · rain 2.56 mm · humidity 58% · wind 5 m/s · clouds 100%
Thursday10 September 2026
🌧️31°moderate rain
sunrise 06:15 · sunset 18:25 · night 26° · evening 30° · rain 10.27 mm · humidity 64% · wind 5 m/s · clouds 100%
Friday11 September 2026
🌧️25°moderate rain
sunrise 06:15 · sunset 18:25 · night 25° · evening 26° · rain 6.99 mm · humidity 88% · wind 2 m/s · clouds 100%
Saturday12 September 2026
🌧️30°moderate rain
sunrise 06:15 · sunset 18:24 · night 26° · evening 29° · rain 4.11 mm · humidity 62% · wind 4 m/s · clouds 77%
Sunday13 September 2026
🌧️28°moderate rain
sunrise 06:15 · sunset 18:24 · night 25° · evening 27° · rain 20.82 mm · humidity 72% · wind 2 m/s · clouds 100%
Monday14 September 2026
🌧️29°light rain
sunrise 06:14 · sunset 18:23 · night 27° · evening 29° · rain 0.12 mm · humidity 67% · wind 4 m/s · clouds 97%
Tuesday15 September 2026
🌧️30°light rain
sunrise 06:14 · sunset 18:23 · night 26° · evening 30° · rain 3.81 mm · humidity 68% · wind 4 m/s · clouds 62%
Wednesday16 September 2026
🌧️30°light rain
sunrise 06:14 · sunset 18:22 · night 27° · evening 31° · rain 3.75 mm · humidity 62% · wind 3 m/s · clouds 96%
Thursday17 September 2026
🌧️29°light rain
sunrise 06:14 · sunset 18:22 · night 26° · evening 29° · rain 8.34 mm · humidity 71% · wind 4 m/s · clouds 90%
Friday18 September 2026
🌧️25°moderate rain
sunrise 06:13 · sunset 18:21 · night 25° · evening 25° · rain 15.33 mm · humidity 92% · wind 3 m/s · clouds 100%
Saturday19 September 2026
☁️27°overcast clouds
sunrise 06:13 · sunset 18:21 · night 27° · evening 29° · rain 1.05 mm · humidity 84% · wind 4 m/s · clouds 99%
Sunday20 September 2026
🌧️29°light rain
sunrise 06:13 · sunset 18:20 · night 28° · evening 30° · rain 1.86 mm · humidity 73% · wind 5 m/s · clouds 100%

UV index in Kuala Belait - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTKuala Belait03681111+8.6UV VERY HIGHtoday, daily maxSPF 50, long sleeves and shade between 10:00 and16:00.Unprotected fair skin may burn in about 25 min9Sat5.098Sun6.099Mon7.099Tue8.099Wed9.099Thu10.097Fri11.099Sat12.095Sun13.097Mon14.099Tue15.099Wed16.098Thu17.099Fri18.092Sat19.098Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Kuala Belait is 9 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

Sea temperature - Kuala Belait

Water today
32°C
Week avg
32°C
Waves today
0.6 m
How's the water?
very warm
16-day sea temperature forecast:
5.09 32°C6.09 32°C7.09 33°C8.09 33°C9.09 33°C10.09 33°C11.09 33°C12.09 33°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 30°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Kuala Belait weather through the year

Kuala Belait - annual climate

Nearby and related places

MiriBandar Seri BegawanSandakan

FAQ - Kuala Belait weather

What is the weather like in Kuala Belait today?
Today it is about 31° during the day and 27° at night, light rain.
How far ahead can I check the forecast for Kuala Belait?
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.