Climate Overview
The climate in Bandar Seri Begawan is hot. The average annual temperature is 27°C and approximately 2847mm of precipitation falls per year. Bandar Seri Begawan receives a notable amount of rainfall throughout the year, including during its driest month. Bandar Seri Begawan sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Bandar Seri Begawan has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is May, when average highs reach 31°C and the mean temperature sits around 28°C. February is the coolest month, with minimum temperatures around 25°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.
Precipitation
Bandar Seri Begawan is a very wet location, receiving approximately 2847mm of precipitation annually, which averages out to around 237mm per month. The wettest month is November, averaging 298mm of rainfall. October and December also tend to see above-average precipitation. The driest month is February, with just 130mm. That's 168mm less than November, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Bandar Seri Begawan is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Bandar Seri Begawan, which began on March 20, 2026. Bandar Seri Begawan sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in May at around 31°C, while the coldest stretch bottoms out in February near 25°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 25 to 31°C. Rainfall is heavy, totalling around 625mm across the season with a monthly average of 208mm. Winds are generally light, averaging 13km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 712mm across the season with a monthly average of 237mm. Winds are generally light, averaging 12km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 840mm across the season with a monthly average of 280mm. Winds are generally light, averaging 13km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 669mm across the season with a monthly average of 223mm. Winds are generally light, averaging 14km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Bandar Seri Begawan based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
