Climate Insights for Brazzaville

The climate in Brazzaville is hot. The average annual temperature is 25°C and approximately 1262mm of precipitation falls per year. November is the wettest month, receiving around 221mm of rainfall. Brazzaville sits near the equator, so seasonal temperature differences are minimal throughout the year.

Brazzaville sees moderate temperature variation throughout the year, ranging from 20°C to 31°C. The warmest month is March, when average highs reach 31°C and the mean temperature sits around 27°C. July is the coolest month, with minimum temperatures around 20°C and an average of 23°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Brazzaville is a fairly wet location, receiving approximately 1262mm of precipitation annually, which averages out to around 105mm per month. The wettest month is November, averaging 221mm of rainfall. December and October also tend to see above-average precipitation. The driest month is July, with just 5mm. That's 216mm less than November, 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.

Brazzaville is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, 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.

It is currently autumn in Brazzaville, which began on March 20, 2026. Brazzaville 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 31°C, while the coldest stretch bottoms out in July near 20°C. Winter is next, beginning on June 21, 2026 — 4 days from now.

The best time to visit Brazzaville is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 11mm per month. By contrast, March can be uncomfortably hot with temperatures reaching 31°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Brazzaville 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.