Climate Overview
The climate in Bireun is hot. The average annual temperature is 26°C and approximately 3052mm of precipitation falls per year. Bireun receives a notable amount of rainfall throughout the year, including during its driest month. Bireun sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Bireun has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is June, when average highs reach 30°C and the mean temperature sits around 27°C. February is the coolest month, with minimum temperatures around 23°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
Bireun is a very wet location, receiving approximately 3052mm of precipitation annually, which averages out to around 254mm per month. The wettest month is December, averaging 428mm of rainfall. November and May also tend to see above-average precipitation. The driest month is February, with just 124mm. That's 304mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Bireun is relatively calm, with an average annual wind speed of 1km/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 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
92 days until Autumn
It is currently summer in Bireun, which began on June 21, 2026. Bireun sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in June at around 30°C, while the coldest stretch bottoms out in February near 23°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.
Spring
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 704mm across the season with a monthly average of 235mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 595mm across the season with a monthly average of 198mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 994mm across the season with a monthly average of 331mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 29°C. Rainfall is heavy, totalling around 760mm across the season with a monthly average of 253mm. Winds are generally light, averaging 2km/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 Bireun 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.
