Climate Insights for Koumassi

The climate in Koumassi is hot. The average annual temperature is 26°C and approximately 1517mm of precipitation falls per year. Koumassi receives a notable amount of rainfall throughout the year, including during its driest month. Koumassi sits near the equator, so seasonal temperature differences are minimal throughout the year.

Koumassi has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is April, when average highs reach 29°C and the mean temperature sits around 28°C. August is the coolest month, with minimum temperatures around 24°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.

Koumassi is a fairly wet location, receiving approximately 1517mm of precipitation annually, which averages out to around 126mm per month. The wettest month is June, averaging 374mm of rainfall. May and October also tend to see above-average precipitation. The driest month is January, with just 42mm. That's 332mm less than June, 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.

Koumassi is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 11km/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 pick up during the summer months. The seasonal averages are 13km/h in winter, 15km/h in spring, 16km/h in summer, 13km/h in autumn.

It is currently summer in Koumassi, which began on June 21, 2026. Koumassi 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 24°C. Autumn is next, beginning on September 23, 2026 (9 days from now).

The best time to visit Koumassi is during August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 68mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 29°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Koumassi 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.