Average annual temperature is 26.5 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: 15.6 °C
Number of sunny days: 206 days
Number of rainy days: 159 days
Look at detailed online map of Biro
* Weather data for Biro 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) | 35.7 | 37.1 | 37.9 | 37.9 | 37.1 | 34.9 | 33.1 | 32.5 | 35.4 | 36.2 | 36.2 | 35.3 |
| Average daytime temperature (°C) | 32.5 | 34.3 | 35.8 | 35.9 | 34.7 | 31.9 | 31.1 | 29.4 | 31.2 | 33.8 | 34.9 | 33.5 |
| Average temperature (°C) | 24.5 | 26.3 | 28.4 | 28.7 | 28.1 | 26.0 | 25.6 | 24.6 | 25.4 | 26.8 | 27.7 | 25.4 |
| Average night temperature (°C) | 18.3 | 19.9 | 22.9 | 23.8 | 23.6 | 22.5 | 22.2 | 21.6 | 21.8 | 22.1 | 21.9 | 18.8 |
| Absolute minimum temperature (°C) | 15.6 | 17.6 | 19.4 | 22.5 | 22.0 | 21.5 | 21.3 | 20.8 | 20.8 | 20.7 | 19.0 | 16.6 |
| 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) | 11.6 | 11.8 | 12.1 | 12.3 | 12.6 | 12.7 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| 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) | 10.1 | 9.9 | 9.4 | 9.3 | 9.6 | 8.6 | 8.4 | 7.3 | 8.0 | 9.7 | 10.7 | 10.5 |
| Precipitation (mm) | 0 | 0 | 9 | 25 | 49 | 99 | 151 | 237 | 112 | 56 | 3 | 0 |
| Sunny days | 31 | 28 | 26 | 22 | 16 | 2 | 2 | 1 | 4 | 16 | 27 | 31 |
| Rainy days | 0 | 0 | 5 | 8 | 15 | 28 | 29 | 30 | 26 | 15 | 3 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Biro is at