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Bandar Seri Begawan, Brunei climate
Af Tropical rainforest
Bandar Seri Begawan has a remarkably steady tropical climate (Tropical rainforest, Köppen Af). The hottest month is May with an average daily high near 32°C, while the coldest is January averaging around 25°C at night. Around 3110 mm of precipitation falls each year, peaking in October (383 mm) and easing off in February (107 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Bandar Seri Begawan climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 31 | 32 | 32 | 32 | 32 | 31 | 32 | 31 | 31 | 31 | 31 |
| Avg temp (°C) | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Precipitation (mm) | 172 | 107 | 119 | 190 | 272 | 309 | 302 | 302 | 305 | 383 | 355 | 295 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 31 | 32 | 32 | 32 | 32 |
| Avg temp (°C) | 28 | 28 | 28 | 29 | 29 | 28 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 |
| Precipitation (mm) | 172 | 107 | 119 | 190 | 272 | 309 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 32 | 31 | 31 | 31 | 31 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 |
| Precipitation (mm) | 302 | 302 | 305 | 383 | 355 | 295 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 6 | 9 | 12 | 12 | 14 | 12 | 11 | 13 | 16 | 16 | 13 |
| Days with high ≥ 32°C (days) | 2 | 3 | 9 | 13 | 14 | 11 | 9 | 11 | 7 | 5 | 4 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 6 | 9 | 12 | 12 | 14 |
| Days with high ≥ 32°C (days) | 2 | 3 | 9 | 13 | 14 | 11 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 11 | 13 | 16 | 16 | 13 |
| Days with high ≥ 32°C (days) | 9 | 11 | 7 | 5 | 4 | 3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 71 | 65 | 66 | 77 | 81 | 83 | 80 | 83 | 85 | 83 | 82 |
| Relative humidity (%) | 84 | 85 | 84 | 81 | 79 | 79 | 79 | 79 | 80 | 82 | 81 | 82 |
| Wind speed (km/h) | 16.8 | 16.6 | 13.5 | 10.2 | 9.5 | 10.4 | 11.1 | 11.9 | 11.7 | 12.3 | 11.7 | 14.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 71 | 65 | 66 | 77 | 81 |
| Relative humidity (%) | 84 | 85 | 84 | 81 | 79 | 79 |
| Wind speed (km/h) | 16.8 | 16.6 | 13.5 | 10.2 | 9.5 | 10.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 83 | 80 | 83 | 85 | 83 | 82 |
| Relative humidity (%) | 79 | 79 | 80 | 82 | 81 | 82 |
| Wind speed (km/h) | 11.1 | 11.9 | 11.7 | 12.3 | 11.7 | 14.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 23 years of daily observations at Labuan, a weather station, about 57 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.