Brazzaville is warmest in September, averaging 30° by day and 21° at night. The wettest month is November with 294 mm, and the year brings about 1808 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 29° | 22° | 226 mm | 12.2 h | Rainy season |
| February | 29° | 22° | 199 mm | 12.1 h | Rainy season |
| March | 29° | 22° | 257 mm | 12.0 h | Rainy season |
| April | 29° | 22° | 255 mm | 11.9 h | Rainy season |
| May | 29° | 22° | 133 mm | 11.8 h | Mild |
| June | 29° | 19° | 15 mm | 11.8 h | Beach weather |
| July | 29° | 19° | 3 mm | 11.8 h | Beach weather |
| August | 30° | 20° | 9 mm | 11.9 h | Beach weather |
| September | 30° | 21° | 42 mm | 12.0 h | Beach weather |
| October | 30° | 22° | 149 mm | 12.1 h | Mild |
| November | 29° | 22° | 294 mm | 12.2 h | Rainy season |
| December | 29° | 22° | 226 mm | 12.2 h | Rainy season |
High and low are average daily maximum and minimum, rain is typical monthly total, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER — averages, not promises.
When to go
Beach weather: June, July, August and September — highs around 29°, nights no colder than 19°, and at most 42 mm of rain in a month.
Wet season: January, February, March, April, November and December — up to 294 mm in a single month.