Average annual temperature is 29.1 °C
Absolute maximum temperature: 44.1 °C
Absolute minimum temperature: 15.5 °C
Number of sunny days: 246 days
Number of rainy days: 119 days
Look at detailed online map of Issani
* Weather data for Issani Chad is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 39.5 | 39.8 | 42.0 | 44.1 | 44.0 | 40.0 | 36.9 | 34.2 | 35.2 | 38.0 | 38.6 | 37.6 |
| Average daytime temperature (°C) | 33.7 | 35.4 | 39.1 | 41.3 | 41.2 | 34.9 | 33.6 | 30.9 | 32.1 | 35.4 | 36.5 | 33.9 |
| Average temperature (°C) | 25.3 | 27.1 | 31.5 | 34.6 | 34.7 | 29.5 | 28.6 | 26.4 | 27.2 | 28.7 | 29.4 | 25.8 |
| Average night temperature (°C) | 17.9 | 19.9 | 24.8 | 27.6 | 28.7 | 25.6 | 24.9 | 23.5 | 23.6 | 23.0 | 23.0 | 18.7 |
| Absolute minimum temperature (°C) | 15.5 | 16.8 | 21.2 | 24.4 | 25.8 | 23.8 | 23.4 | 21.7 | 21.6 | 21.0 | 18.9 | 15.6 |
| 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) | 11.5 | 11.8 | 12.1 | 12.4 | 12.7 | 12.8 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 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) | 10.3 | 10.7 | 10.0 | 10.0 | 10.6 | 8.2 | 9.1 | 8.0 | 8.7 | 10.3 | 10.2 | 10.2 |
| Precipitation (mm) | 0 | 0 | 16 | 0 | 5 | 67 | 98 | 303 | 130 | 36 | 0 | 0 |
| Sunny days | 31 | 28 | 29 | 29 | 22 | 8 | 3 | 5 | 8 | 23 | 29 | 31 |
| Rainy days | 0 | 0 | 2 | 1 | 9 | 22 | 28 | 26 | 22 | 8 | 1 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Issani is at