Climate Overview
The climate in Ayer Hitam is hot. The average annual temperature is 27°C and approximately 2460mm of precipitation falls per year. Ayer Hitam receives a notable amount of rainfall throughout the year, including during its driest month. Ayer Hitam sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Ayer Hitam has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is March, when average highs reach 32°C and the mean temperature sits around 27°C. September is the coolest month, with minimum temperatures around 24°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Ayer Hitam is a very wet location, receiving approximately 2460mm of precipitation annually, which averages out to around 205mm per month. The wettest month is November, averaging 300mm of rainfall. December and May also tend to see above-average precipitation. The driest month is February, with just 104mm. That's 196mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Ayer Hitam 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 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 9km/h in winter, 6km/h in spring, 6km/h in summer, 6km/h in autumn.
Seasons
87 days until Winter
It is currently autumn in Ayer Hitam, which began on September 23, 2026. Ayer Hitam sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in March at around 32°C, while the coldest stretch bottoms out in September near 24°C. Winter is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 24 to 32°C. Rainfall is heavy, totalling around 641mm across the season with a monthly average of 214mm. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 31°C. Rainfall is heavy, totalling around 530mm across the season with a monthly average of 177mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 31°C. Rainfall is heavy, totalling around 722mm across the season with a monthly average of 241mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 31°C. Rainfall is heavy, totalling around 568mm across the season with a monthly average of 189mm. Winds are generally light, averaging 9km/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 Ayer Hitam 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.
