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.

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.