Average annual temperature is 28.2 °C
Absolute maximum temperature: 41.9 °C
Absolute minimum temperature: 11.8 °C
Number of sunny days: 291 days
Number of rainy days: 74 days
Look at detailed online map of Roundouna
* Weather data for Roundouna Niger 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 | 38.4 | 40.8 | 41.9 | 41.3 | 39.4 | 37.9 | 33.9 | 35.4 | 38.3 | 37.2 | 35.6 |
| Average daytime temperature (°C) | 31.0 | 33.4 | 37.7 | 39.6 | 39.7 | 35.5 | 33.7 | 31.2 | 32.8 | 36.4 | 35.6 | 30.6 |
| Average temperature (°C) | 23.0 | 25.5 | 30.0 | 32.5 | 33.6 | 30.3 | 28.9 | 26.8 | 27.8 | 29.4 | 28.2 | 22.7 |
| Average night temperature (°C) | 15.4 | 17.9 | 22.3 | 25.2 | 27.0 | 25.6 | 24.7 | 23.5 | 23.7 | 22.7 | 21.2 | 15.3 |
| Absolute minimum temperature (°C) | 12.6 | 15.5 | 18.6 | 21.2 | 22.3 | 23.1 | 23.1 | 22.1 | 21.9 | 18.2 | 16.5 | 11.8 |
| 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) | 11.4 | 11.7 | 12.1 | 12.4 | 12.8 | 12.9 | 12.8 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 |
| 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) | 10.4 | 10.5 | 9.9 | 10.5 | 10.6 | 10.3 | 10.0 | 8.8 | 10.3 | 10.6 | 10.3 | 10.5 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 68 | 45 | 130 | 57 | 2 | 0 | 0 |
| Sunny days | 31 | 28 | 29 | 29 | 29 | 20 | 13 | 9 | 13 | 29 | 30 | 31 |
| Rainy days | 0 | 0 | 2 | 1 | 2 | 10 | 18 | 22 | 17 | 2 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Roundouna is at