Average annual temperature is 27.9 °C
Absolute maximum temperature: 41.6 °C
Absolute minimum temperature: 15.4 °C
Number of sunny days: 210 days
Number of rainy days: 155 days
Look at detailed online map of Guelsao
* Weather data for Guelsao 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) | 39.2 | 39.7 | 41.6 | 41.2 | 41.0 | 36.0 | 33.2 | 32.2 | 32.2 | 34.3 | 35.5 | 35.3 |
| Average daytime temperature (°C) | 35.1 | 37.0 | 38.0 | 39.0 | 37.6 | 32.1 | 30.7 | 29.5 | 30.1 | 32.4 | 33.0 | 33.9 |
| Average temperature (°C) | 26.6 | 28.5 | 30.7 | 33.0 | 31.6 | 27.0 | 26.4 | 25.5 | 25.8 | 27.0 | 26.9 | 26.0 |
| Average night temperature (°C) | 18.1 | 20.0 | 23.6 | 27.2 | 26.7 | 23.5 | 23.1 | 22.5 | 22.3 | 22.7 | 21.8 | 17.9 |
| Absolute minimum temperature (°C) | 16.0 | 17.9 | 20.0 | 23.1 | 23.6 | 21.8 | 21.7 | 21.8 | 20.2 | 21.5 | 18.0 | 15.4 |
| 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 | 11.8 | 12.1 | 12.3 | 12.5 | 12.6 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| 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 | 10.7 | 9.4 | 10.1 | 9.8 | 8.4 | 9.1 | 7.8 | 8.8 | 10.3 | 10.0 | 10.5 |
| Precipitation (mm) | 0 | 0 | 12 | 2 | 58 | 195 | 168 | 233 | 136 | 63 | 42 | 0 |
| Sunny days | 31 | 28 | 28 | 26 | 18 | 1 | 3 | 1 | 6 | 16 | 21 | 31 |
| Rainy days | 0 | 0 | 3 | 4 | 13 | 29 | 28 | 30 | 24 | 15 | 9 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Guelsao is at