Climate Overview
The climate in Kumasi is hot. The average annual temperature is 27°C and approximately 1088mm of precipitation falls per year. September is the wettest month, receiving around 166mm of rainfall. Kumasi sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Kumasi sees moderate temperature variation throughout the year, ranging from 23°C to 35°C. The warmest month is February, when average highs reach 35°C and the mean temperature sits around 29°C. August is the coolest month, with minimum temperatures around 23°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Kumasi is a moderately rainy area, receiving approximately 1088mm of precipitation annually, which averages out to around 91mm per month. The wettest month is September, averaging 166mm of rainfall. October and June also tend to see above-average precipitation. The driest month is January, with just 9mm. That's 157mm less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Kumasi is relatively calm, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 11km/h in winter, 13km/h in spring, 13km/h in summer, 10km/h in autumn.
Seasons
90 days until Summer
It is currently spring in Kumasi, which began on March 20, 2026. Kumasi 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 35°C, while the coldest stretch bottoms out in August near 23°C. Summer is next, beginning on June 21, 2026 — 90 days from now.
Spring
Temperatures range from 24 to 34°C. Rainfall is heavy, totalling around 304mm across the season with a monthly average of 101mm. Winds are generally light, averaging 13km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 351mm across the season with a monthly average of 117mm. Winds are generally light, averaging 13km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 32°C. Rainfall is heavy, totalling around 373mm across the season with a monthly average of 124mm. Winds are generally light, averaging 10km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 35°C. Rainfall is relatively light, with around 61mm over the season and a monthly average of 20mm. Winds are generally light, averaging 11km/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 Kumasi 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.
