Climate Overview
The climate in Bulolo is warm and mild. The average annual temperature is 19°C and approximately 5107mm 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 9°C range. February is the warmest month, though highs remain moderate at 25°C with a mean of 20°C. July is the coolest month, with minimum temperatures around 16°C and an average of 18°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
Bulolo is a very wet location, receiving approximately 5107mm of precipitation annually, which averages out to around 426mm per month. The wettest month is March, averaging 656mm of rainfall. December and April also tend to see above-average precipitation. The driest month is July, with just 228mm. That's 428mm less than March, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Bulolo 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 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
93 days until Spring
It is currently winter in Bulolo, which began on June 21, 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 25°C, while the coldest stretch bottoms out in July near 16°C. Spring is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 16 to 24°C. Rainfall is heavy, totalling around 1293mm across the season with a monthly average of 431mm. Winds are generally light, averaging 1km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 17 to 25°C. Rainfall is heavy, totalling around 1412mm across the season with a monthly average of 471mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 17 to 24°C. Rainfall is heavy, totalling around 1520mm across the season with a monthly average of 507mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 16 to 22°C. Rainfall is heavy, totalling around 882mm across the season with a monthly average of 294mm. Winds are generally light, averaging 1km/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.
