Climate Overview
The climate in Mamuju is hot. The average annual temperature is 25°C and approximately 4274mm of precipitation falls per year. Mamuju receives a notable amount of rainfall throughout the year, including during its driest month. Mamuju sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Mamuju has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is April, when average highs reach 29°C and the mean temperature sits around 25°C. August is the coolest month, with minimum temperatures around 22°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
Mamuju is a very wet location, receiving approximately 4274mm of precipitation annually, which averages out to around 356mm per month. The wettest month is May, averaging 444mm of rainfall. November and June also tend to see above-average precipitation. The driest month is February, with just 270mm. That's 174mm less than May, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Mamuju is relatively calm, with an average annual wind speed of 7km/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 June, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
89 days until Winter
It is currently autumn in Mamuju, which began on March 20, 2026. Mamuju sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in April at around 29°C, while the coldest stretch bottoms out in August near 22°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 22 to 29°C. Rainfall is heavy, totalling around 1198mm across the season with a monthly average of 399mm. Winds are generally light, averaging 7km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 22 to 29°C. Rainfall is heavy, totalling around 852mm across the season with a monthly average of 284mm. Winds are generally light, averaging 8km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 29°C. Rainfall is heavy, totalling around 1157mm across the season with a monthly average of 386mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 28°C. Rainfall is heavy, totalling around 1068mm across the season with a monthly average of 356mm. Winds are generally light, averaging 7km/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 Mamuju 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.
