Climate Overview
The climate in Bulolo is warm and mild. The average annual temperature is 21°C and approximately 5935mm of precipitation falls per year. Bulolo receives a notable amount of rainfall throughout the year, including during its driest month. Bulolo sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Bulolo has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is February, when average highs reach 27°C and the mean temperature sits around 22°C. July is the coolest month, with minimum temperatures around 17°C and an average of 19°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Bulolo is a very wet location, receiving approximately 5935mm of precipitation annually, which averages out to around 495mm per month. The wettest month is March, averaging 595mm of rainfall. April and December also tend to see above-average precipitation. The driest month is July, with just 415mm. That's 180mm less than March, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Bulolo is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
89 days until Winter
It is currently autumn in Bulolo, which began on March 20, 2026. Bulolo sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in February at around 27°C, while the coldest stretch bottoms out in July near 17°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 17 to 25°C. Rainfall is heavy, totalling around 1439mm across the season with a monthly average of 480mm. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 19 to 27°C. Rainfall is heavy, totalling around 1545mm across the season with a monthly average of 515mm. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 18 to 26°C. Rainfall is heavy, totalling around 1647mm across the season with a monthly average of 549mm. Winds are generally light, averaging 5km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 17 to 23°C. Rainfall is heavy, totalling around 1305mm across the season with a monthly average of 435mm. Winds are generally light, averaging 6km/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 Bulolo 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.
