Average annual temperature is 26.8 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: 15.5 °C
Number of sunny days: 182 days
Number of rainy days: 183 days
Look at detailed online map of Siourou
* Weather data for Siourou 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) | 36.6 | 38.2 | 39.0 | 38.4 | 36.8 | 34.8 | 33.8 | 32.6 | 35.8 | 35.7 | 36.8 | 36.5 |
| Average daytime temperature (°C) | 34.5 | 36.3 | 36.6 | 36.0 | 34.5 | 31.6 | 31.1 | 30.3 | 31.3 | 33.4 | 35.3 | 35.0 |
| Average temperature (°C) | 25.6 | 27.6 | 28.8 | 28.9 | 27.9 | 26.1 | 25.7 | 25.1 | 25.6 | 26.8 | 27.9 | 25.9 |
| Average night temperature (°C) | 18.5 | 20.6 | 23.4 | 24.1 | 23.6 | 22.7 | 22.5 | 22.1 | 22.0 | 22.4 | 21.9 | 18.5 |
| Absolute minimum temperature (°C) | 15.5 | 18.4 | 20.5 | 22.8 | 22.3 | 21.7 | 21.7 | 21.4 | 20.8 | 20.9 | 19.4 | 16.1 |
| 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) | 11.7 | 11.8 | 12.1 | 12.3 | 12.5 | 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) | 10.0 | 9.9 | 9.1 | 9.1 | 9.6 | 8.6 | 7.9 | 6.8 | 8.0 | 9.3 | 10.6 | 10.4 |
| Precipitation (mm) | 0 | 0 | 37 | 23 | 129 | 149 | 173 | 208 | 122 | 67 | 7 | 0 |
| Sunny days | 31 | 27 | 20 | 18 | 7 | 4 | 2 | 1 | 1 | 14 | 26 | 31 |
| Rainy days | 0 | 1 | 11 | 12 | 24 | 26 | 29 | 30 | 29 | 17 | 4 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siourou is at