Average annual temperature is 27.3 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: 17.8 °C
Number of sunny days: 88 days
Number of rainy days: 277 days
Look at detailed online map of Bonou
* Weather data for Bonou Benin is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 36.8 | 39.5 | 37.2 | 37.1 | 35.6 | 35.0 | 32.9 | 32.4 | 34.0 | 34.4 | 35.7 | 37.7 |
| Average daytime temperature (°C) | 35.6 | 37.1 | 35.4 | 34.3 | 33.6 | 31.3 | 30.6 | 30.3 | 30.8 | 31.9 | 33.6 | 35.7 |
| Average temperature (°C) | 27.9 | 29.1 | 28.7 | 28.5 | 28.0 | 26.2 | 25.8 | 25.9 | 25.8 | 26.6 | 27.5 | 28.1 |
| Average night temperature (°C) | 22.7 | 24.2 | 24.6 | 24.9 | 24.6 | 23.5 | 23.2 | 23.2 | 23.1 | 23.6 | 23.9 | 22.9 |
| Absolute minimum temperature (°C) | 17.8 | 20.4 | 23.1 | 23.6 | 23.2 | 22.2 | 22.4 | 22.0 | 21.8 | 21.6 | 22.4 | 20.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.5 | 12.3 | 12.2 | 12.0 | 11.8 | 11.7 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.3 | 9.7 | 8.4 | 8.4 | 8.9 | 7.4 | 8.4 | 7.7 | 7.6 | 8.5 | 9.5 | 10.2 |
| Precipitation (mm) | 11 | 4 | 82 | 70 | 123 | 197 | 195 | 192 | 210 | 110 | 31 | 12 |
| Sunny days | 22 | 15 | 4 | 7 | 1 | 2 | 0 | 0 | 1 | 1 | 8 | 27 |
| Rainy days | 9 | 13 | 27 | 23 | 30 | 28 | 31 | 31 | 29 | 30 | 22 | 4 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bonou is at