Average annual temperature is 28.8 °C
Absolute maximum temperature: 42.4 °C
Absolute minimum temperature: 13.6 °C
Number of sunny days: 296 days
Number of rainy days: 69 days
Look at detailed online map of Mariri
* Weather data for Mariri 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) | 37.5 | 38.6 | 40.6 | 42.3 | 42.4 | 40.0 | 37.8 | 38.6 | 39.0 | 38.6 | 37.8 | 35.6 |
| Average daytime temperature (°C) | 30.1 | 32.0 | 37.2 | 39.6 | 40.5 | 35.4 | 35.2 | 33.4 | 35.5 | 36.4 | 35.3 | 30.3 |
| Average temperature (°C) | 22.7 | 24.6 | 30.0 | 32.9 | 34.3 | 30.3 | 30.4 | 28.7 | 29.9 | 30.1 | 28.7 | 23.0 |
| Average night temperature (°C) | 16.3 | 18.2 | 23.5 | 26.5 | 27.9 | 25.9 | 26.1 | 24.6 | 25.2 | 24.3 | 22.8 | 16.9 |
| Absolute minimum temperature (°C) | 13.6 | 14.9 | 20.1 | 22.5 | 24.5 | 23.0 | 24.1 | 22.6 | 23.4 | 20.7 | 18.2 | 13.8 |
| 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 | 12.7 | 12.9 | 12.8 | 12.6 | 12.2 | 11.8 | 11.5 | 11.4 |
| 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) | 10.5 | 10.9 | 10.4 | 10.3 | 11.0 | 9.8 | 10.2 | 9.6 | 9.6 | 10.0 | 9.8 | 10.1 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 13 | 42 | 109 | 61 | 13 | 0 | 0 |
| Sunny days | 31 | 28 | 31 | 30 | 30 | 17 | 17 | 12 | 12 | 27 | 30 | 31 |
| Rainy days | 0 | 0 | 0 | 0 | 1 | 13 | 14 | 19 | 18 | 4 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mariri is at