Bandar Seri Begawan, Brunei Climate & Monthly Averages
The climate of Bandar Seri Begawan
Bandar Seri Begawan has one of the steadier climates in our dataset. Average highs move only 1°C across the whole year - from 84°F (29°C) in January to 87°F (31°C) in May - so the practical difference between seasons here is rainfall and daylight, not warmth.
Climate quick facts
- Hottest month: May - highs near 87°F (31°C)
- Coldest month: January - highs near 84°F (29°C)
- Decade extremes (2015-2024): 93°F (34°C) high · 69°F (21°C) low
- Wettest month: December (28 rainy days) · Sunniest: April (9.9 h sun/day)
- Climate type: tropical rainforest
- Annual swing: 1°C between the average warmest and coolest month · day to night: 6°C
- Months averaging 30°C or hotter: 6
- Average humidity: 87%
Temperatures through the year
Warmth peaks in May: highs of 87°F (31°C), lows of 77°F (25°C). January bottoms out at 84°F (29°C) in daylight, 75°F (24°C) after dark. Days and nights are about 6°C apart on average - narrower than all but 8% of the 3496 cities in our dataset.
Rain, sun and snow
Relative humidity averages 87% across the year, more humid than almost anywhere else we cover - enough that summer afternoons feel hotter than the thermometer says, which is what the dew point converter is for. Average highs hold at or above 30°C for 6 months of the year, April through September being the unbroken run. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 93°F (34°C) and the lowest daily minimum 69°F (21°C).
How Bandar Seri Begawan compares
- Annual precipitation is 131.0 inches (3327 mm) - wetter than any other city in our 3496-city dataset.
- Its warmest and coolest months are 1°C apart - a steadier year than almost every other city we track.
- Rain or snow reaches the ground on 298 days a year - more wet days than any other city in our 3496-city dataset.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 84° | 75° | 27 | 12.5 in | 8.6 h/day | 11.9 h | 88% | 89% |
| February | 85° | 75° | 21 | 7.1 in | 9.5 h/day | 12.0 h | 74% | 87% |
| March | 86° | 76° | 25 | 8.4 in | 9.5 h/day | 12.1 h | 80% | 86% |
| April | 87° | 76° | 26 | 9.3 in | 9.9 h/day | 12.2 h | 87% | 86% |
| May | 87° | 77° | 26 | 12.4 in | 9.2 h/day | 12.3 h | 84% | 87% |
| June | 86° | 76° | 23 | 10.0 in | 9.2 h/day | 12.4 h | 77% | 87% |
| July | 87° | 76° | 21 | 10.1 in | 9.4 h/day | 12.4 h | 69% | 86% |
| August | 87° | 76° | 23 | 10.8 in | 9.3 h/day | 12.3 h | 74% | 86% |
| September | 86° | 75° | 23 | 10.1 in | 8.9 h/day | 12.1 h | 76% | 86% |
| October | 86° | 75° | 27 | 13.4 in | 8.8 h/day | 12.0 h | 86% | 88% |
| November | 85° | 75° | 28 | 13.4 in | 9.1 h/day | 11.9 h | 93% | 89% |
| December | 85° | 75° | 28 | 13.5 in | 8.6 h/day | 11.8 h | 89% | 89% |
Bandar Seri Begawan month by month
Average high and low for each month, with the bar showing where it sits in Bandar Seri Begawan's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 27 days
- Sunshine
- 8.6 h
- Daylight
- 11.9 h
February
- Rain
- 21 days
- Sunshine
- 9.5 h
- Daylight
- 12.0 h
March
- Rain
- 25 days
- Sunshine
- 9.5 h
- Daylight
- 12.1 h
April
- Rain
- 26 days
- Sunshine
- 9.9 h
- Daylight
- 12.2 h
May
- Rain
- 26 days
- Sunshine
- 9.2 h
- Daylight
- 12.3 h
June
- Rain
- 23 days
- Sunshine
- 9.2 h
- Daylight
- 12.4 h
July
- Rain
- 21 days
- Sunshine
- 9.4 h
- Daylight
- 12.4 h
August
- Rain
- 23 days
- Sunshine
- 9.3 h
- Daylight
- 12.3 h
September
- Rain
- 23 days
- Sunshine
- 8.9 h
- Daylight
- 12.1 h
October
- Rain
- 27 days
- Sunshine
- 8.8 h
- Daylight
- 12.0 h
November
- Rain
- 28 days
- Sunshine
- 9.1 h
- Daylight
- 11.9 h
December
- Rain
- 28 days
- Sunshine
- 8.6 h
- Daylight
- 11.8 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Bandar Seri Begawan
March through May
March through May in Bandar Seri Begawan sits firmly in the heat, with daytime highs averaging 87°F (30°C) and nights around 76°F (24°C); rain falls on around 77 of the 90 days.
June through August
June through August in Bandar Seri Begawan sits firmly in the heat, with daytime highs averaging 87°F (30°C) and nights around 76°F (24°C); rain falls on around 67 of the 90 days.
September through November
September through November brings hot afternoons here - highs near 86°F (30°C), nights near 75°F (24°C), and rain falls on around 78 of the 90 days.
December through February
Through December through February, Bandar Seri Begawan sits firmly in the heat: 85°F (29°C) by day, 75°F (24°C) after dark, and rain falls on around 76 of the 90 days.
Climate questions, answered
How hot does Bandar Seri Begawan get in summer?
Is Bandar Seri Begawan a wet city?
Is Bandar Seri Begawan humid?
How much does the weather change through the year in Bandar Seri Begawan?
Best time to visit Bandar Seri Begawan
The best time to visit Bandar Seri Begawan is generally January to June, when humidity and rainfall are at their lowest, which is what actually varies here. Daytime temperatures in that window sit near 86°F (30°C), with rain on about 25 days a month. For the same question asked the other way round, see where else is warm in January.
Pack for Bandar Seri Begawan with light clothing for the warm months, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. May nights average 77°F (25°C), so evenings rarely match the afternoons.
Bandar Seri Begawan temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.