Average annual temperature is 26.4 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: 17.5 °C
Number of sunny days: 117 days
Number of rainy days: 248 days
Look at detailed online map of Issélou
* Weather data for Issélou 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 | 37.5 | 36.9 | 36.3 | 35.5 | 33.6 | 31.4 | 31.7 | 32.3 | 33.6 | 34.7 | 36.2 |
| Average daytime temperature (°C) | 35.2 | 36.2 | 34.3 | 33.4 | 32.9 | 30.2 | 29.6 | 29.6 | 29.9 | 31.5 | 33.1 | 34.8 |
| Average temperature (°C) | 27.2 | 28.4 | 27.4 | 27.3 | 26.9 | 25.2 | 24.8 | 24.7 | 24.8 | 25.7 | 27.0 | 27.2 |
| Average night temperature (°C) | 21.3 | 23.0 | 23.3 | 23.7 | 23.6 | 22.5 | 22.3 | 22.1 | 22.1 | 22.8 | 23.0 | 21.3 |
| Absolute minimum temperature (°C) | 17.5 | 19.8 | 22.0 | 22.8 | 22.3 | 21.3 | 21.6 | 21.2 | 20.9 | 21.4 | 21.0 | 19.3 |
| 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 | 11.9 | 12.1 | 12.3 | 12.5 | 12.5 | 12.5 | 12.4 | 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) | 9.8 | 9.8 | 8.1 | 7.9 | 8.5 | 7.0 | 7.6 | 7.0 | 7.0 | 7.9 | 9.6 | 10.3 |
| Precipitation (mm) | 1 | 1 | 132 | 72 | 86 | 158 | 183 | 202 | 171 | 139 | 23 | 0 |
| Sunny days | 27 | 25 | 9 | 7 | 0 | 2 | 0 | 0 | 0 | 2 | 15 | 30 |
| Rainy days | 4 | 3 | 22 | 23 | 31 | 28 | 31 | 31 | 30 | 29 | 15 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Issélou is at