Climate Overview
The climate in Ouésso is hot. The average annual temperature is 26°C and approximately 1259mm of precipitation falls per year. October is the wettest month, receiving around 189mm of rainfall. Ouésso sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Ouésso has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is February, when average highs reach 32°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 22°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Ouésso is a fairly wet location, receiving approximately 1259mm of precipitation annually, which averages out to around 105mm per month. The wettest month is October, averaging 189mm of rainfall. September and April also tend to see above-average precipitation. The driest month is January, with just 28mm. That's 161mm less than October, 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
Ouésso 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 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
14 days until Autumn
It is currently summer in Ouésso, which began on June 21, 2026. Ouésso 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 32°C, while the coldest stretch bottoms out in January near 22°C. Autumn is next, beginning on September 23, 2026 (14 days from now).
Spring
Temperatures range from 23 to 32°C. Rainfall is heavy, totalling around 372mm across the season with a monthly average of 124mm. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 22 to 30°C. Precipitation is moderate at around 270mm for the season, averaging 90mm per month. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 22 to 30°C. Rainfall is heavy, totalling around 496mm across the season with a monthly average of 165mm. Winds are generally light, averaging 1km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 32°C. Rainfall is relatively light, with around 120mm over the season and a monthly average of 40mm. Winds are generally light, averaging 2km/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 Ouésso 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.
