Climate Overview
The climate in Tutong is hot. The average annual temperature is 27°C and approximately 2964mm of precipitation falls per year. Tutong receives a notable amount of rainfall throughout the year, including during its driest month. Tutong sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Tutong 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
Tutong is a very wet location, receiving approximately 2964mm of precipitation annually, which averages out to around 247mm per month. The wettest month is October, averaging 302mm of rainfall. December and November also tend to see above-average precipitation. The driest month is February, with just 151mm. That's 150mm less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Tutong is relatively calm, with an average annual wind speed of 8km/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 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
87 days until Winter
It is currently autumn in Tutong, which began on September 23, 2026. Tutong 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. Winter is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 25 to 31°C. Rainfall is heavy, totalling around 673mm across the season with a monthly average of 224mm. Winds are generally light, averaging 7km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 25 to 31°C. Rainfall is heavy, totalling around 702mm across the season with a monthly average of 234mm. Winds are generally light, averaging 7km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 872mm across the season with a monthly average of 291mm. Winds are generally light, averaging 8km/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 717mm across the season with a monthly average of 239mm. Winds are generally light, averaging 8km/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 Tutong 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.
