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Weather in Bandar Seri Begawan - 14-day forecast

Detailed weather forecast for Bandar Seri Begawan, Brunei: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Bandar Seri Begawan
today🌧️ 32°💧 1.5 mm
Sun☁️ 33°💧 0.2 mm
Mon☁️ 31°💧 1.4 mm
Tue☁️ 31°💧 2.6 mm
Wed🌧️ 32°💧 5 mm
Thu🌧️ 31°💧 12.6 mm
Fri🌧️ 26°💧 3.2 mm
Sat🌧️ 30°💧 5.7 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

Tuesday 8 Sept in Bandar Seri Begawan, 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 100% of similar days.

32°Cexceptionally warm
usually 28°C–30°C
warmer than 99% of similar days
night: exceptionally warm rain: less rain than usual wind: stronger than usual
33°Cexceptionally warm
usually 28°C–30°C
warmer than 99% of similar days
night: exceptionally warm rain: exceptionally dry wind: typical
31°Cexceptionally warm
usually 28°C–30°C
warmer than 99% of similar days
night: near normal rain: less rain than usual wind: typical
31°Cexceptionally warm
usually 28°C–30°C
warmer than 100% of similar days
night: cooler than usual rain: less rain than usual wind: typical
32°Cexceptionally warm
usually 28°C–30°C
warmer than 99% of similar days
night: cooler than usual rain: typical rainfall wind: stronger than usual
31°Cexceptionally warm
usually 28°C–30°C
warmer than 99% of similar days
night: warmer than usual rain: more rain than usual wind: stronger than usual
26°Cexceptionally cool
usually 28°C–30°C
cooler than 99% of similar days
night: near normal rain: typical rainfall wind: typical

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: 29°C1982: 29°C1983: 28°C1984: 27°C1985: 29°C1986: 28°C1987: 29°C1988: 28°C1989: 29°C1990: 29°C1991: 29°C1992: 29°C1993: 28°C1994: 29°C1995: 29°C1996: 29°C1997: 28°C1998: 29°C1999: 29°C2000: 29°C2001: 29°C2002: 29°C2003: 29°C2004: 28°C2005: 29°C2006: 29°C2007: 28°C2008: 28°C2009: 30°C2010: 28°C2011: 30°C2012: 28°C2013: 28°C2014: 29°C2015: 28°C2016: 29°C2017: 29°C2018: 29°C2019: 30°C2020: 29°C2021: 29°C2022: 28°C2023: 30°C2024: 31°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 (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 - Bandar Seri Begawan

Bandar Seri Begawan - 14-day weather forecast infographic

Bandar Seri Begawan 30 & 45-day weather - long-range outlook

Next 16 days · forecast
30°
around 26° at night · days with rain: 14
Weeks 3-4 · avg for September
32°
around 24° at night · rain chance 70%
Weeks 5-7 · avg for October
32°
around 24° at night · rain chance 78%
The 30 & 45-day outlook for Bandar Seri Begawan: 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 Bandar Seri Begawan

Saturday5 September 2026
🌧️32°light rain
sunrise 06:13 · sunset 18:25 · night 29° · evening 31° · rain 1.52 mm · humidity 65% · wind 4 m/s · clouds 63%
Sunday6 September 2026
☁️33°overcast clouds
sunrise 06:13 · sunset 18:24 · night 28° · evening 30° · rain 0.18 mm · humidity 63% · wind 4 m/s · clouds 100%
Monday7 September 2026
☁️31°overcast clouds
sunrise 06:13 · sunset 18:24 · night 26° · evening 28° · rain 1.44 mm · humidity 58% · wind 4 m/s · clouds 98%
Tuesday8 September 2026
☁️31°overcast clouds
sunrise 06:13 · sunset 18:23 · night 26° · evening 30° · rain 2.58 mm · humidity 52% · wind 4 m/s · clouds 100%
Wednesday9 September 2026
🌧️32°light rain
sunrise 06:13 · sunset 18:23 · night 26° · evening 30° · rain 4.96 mm · humidity 51% · wind 5 m/s · clouds 100%
Thursday10 September 2026
🌧️31°moderate rain
sunrise 06:12 · sunset 18:22 · night 27° · evening 29° · rain 12.61 mm · humidity 61% · wind 4 m/s · clouds 100%
Friday11 September 2026
🌧️26°light rain
sunrise 06:12 · sunset 18:22 · night 26° · evening 28° · rain 3.15 mm · humidity 86% · wind 4 m/s · clouds 100%
Saturday12 September 2026
🌧️30°moderate rain
sunrise 06:12 · sunset 18:21 · night 26° · evening 30° · rain 5.67 mm · humidity 64% · wind 3 m/s · clouds 100%
Sunday13 September 2026
🌧️28°moderate rain
sunrise 06:12 · sunset 18:21 · night 26° · evening 28° · rain 15.87 mm · humidity 78% · wind 2 m/s · clouds 100%
Monday14 September 2026
🌧️31°moderate rain
sunrise 06:11 · sunset 18:20 · night 27° · evening 29° · rain 6.42 mm · humidity 64% · wind 3 m/s · clouds 51%
Tuesday15 September 2026
🌧️31°light rain
sunrise 06:11 · sunset 18:20 · night 26° · evening 29° · rain 4.95 mm · humidity 64% · wind 3 m/s · clouds 51%
Wednesday16 September 2026
🌧️31°light rain
sunrise 06:11 · sunset 18:19 · night 26° · evening 31° · rain 5.34 mm · humidity 60% · wind 3 m/s · clouds 93%
Thursday17 September 2026
🌧️30°moderate rain
sunrise 06:11 · sunset 18:19 · night 26° · evening 27° · rain 7.68 mm · humidity 62% · wind 3 m/s · clouds 100%
Friday18 September 2026
🌧️24°heavy rain
sunrise 06:11 · sunset 18:18 · night 25° · evening 26° · rain 34.56 mm · humidity 95% · wind 3 m/s · clouds 100%
Saturday19 September 2026
🌧️30°light rain
sunrise 06:10 · sunset 18:18 · night 27° · evening 29° · rain 0.6 mm · humidity 64% · wind 4 m/s · clouds 96%
Sunday20 September 2026
🌧️28°moderate rain
sunrise 06:10 · sunset 18:17 · night 27° · evening 29° · rain 5.04 mm · humidity 74% · wind 4 m/s · clouds 95%

UV index in Bandar Seri Begawan - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTBandar Seri Begawan03681111+8.6UV VERY HIGHtoday, daily maxSPF 50, long sleeves and shade between 10:00 and16:00.Unprotected fair skin may burn in about 25 min9Sat5.098Sun6.099Mon7.099Tue8.099Wed9.099Thu10.098Fri11.098Sat12.092Sun13.098Mon14.099Tue15.099Wed16.098Thu17.099Fri18.094Sat19.093Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Bandar Seri Begawan 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 - Bandar Seri Begawan

Water today
32°C
Week avg
32°C
Waves today
0.4 m
How's the water?
very warm
16-day sea temperature forecast:
5.09 32°C6.09 32°C7.09 32°C8.09 33°C9.09 32°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 32°CJul 31°CAug 31°CSep 31°COct 31°CNov 31°CDec 31°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Bandar Seri Begawan weather through the year

Bandar Seri Begawan - annual climate

Warmest, driest months on average: January, February, March, June.

Nearby and related places

Kuala BelaitMiriSandakan

FAQ - Bandar Seri Begawan weather

What is the weather like in Bandar Seri Begawan today?
Today it is about 32° during the day and 29° at night, light rain.
How far ahead can I check the forecast for Bandar Seri Begawan?
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.