Average annual temperature is 30.1 °C
Absolute maximum temperature: 43.3 °C
Absolute minimum temperature: 15.0 °C
Number of sunny days: 283 days
Number of rainy days: 82 days
Look at detailed online map of Koulay
* Weather data for Koulay 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) | 38.4 | 39.1 | 41.2 | 43.3 | 42.4 | 40.5 | 39.4 | 37.9 | 39.8 | 41.2 | 39.9 | 37.7 |
| Average daytime temperature (°C) | 34.1 | 35.6 | 38.3 | 41.1 | 40.4 | 35.5 | 35.5 | 33.5 | 35.6 | 38.6 | 37.7 | 34.3 |
| Average temperature (°C) | 25.8 | 27.3 | 31.5 | 34.4 | 34.9 | 30.2 | 29.8 | 28.0 | 29.7 | 32.2 | 30.9 | 26.3 |
| Average night temperature (°C) | 18.0 | 19.1 | 24.7 | 27.5 | 29.4 | 25.7 | 25.4 | 24.2 | 25.1 | 25.8 | 24.3 | 18.6 |
| Absolute minimum temperature (°C) | 15.0 | 15.8 | 20.5 | 23.7 | 26.2 | 23.3 | 23.5 | 22.7 | 22.8 | 23.5 | 21.0 | 17.0 |
| 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 | 12.5 | 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) | 10.4 | 10.5 | 10.2 | 10.7 | 10.2 | 8.7 | 9.2 | 9.1 | 8.9 | 10.5 | 10.6 | 10.6 |
| Precipitation (mm) | 0 | 0 | 1 | 0 | 1 | 70 | 50 | 91 | 39 | 0 | 0 | 0 |
| Sunny days | 31 | 28 | 29 | 30 | 28 | 16 | 9 | 9 | 12 | 30 | 30 | 31 |
| Rainy days | 0 | 0 | 2 | 0 | 3 | 14 | 22 | 22 | 18 | 1 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koulay is at