Average annual temperature is 29.3 °C
Absolute maximum temperature: 42.9 °C
Absolute minimum temperature: 13.9 °C
Number of sunny days: 304 days
Number of rainy days: 61 days
Look at detailed online map of Umm Sayyāl
* Weather data for Umm Sayyāl Sudan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 38.1 | 39.4 | 40.1 | 42.9 | 42.1 | 39.2 | 39.4 | 39.0 | 38.8 | 40.1 | 39.5 | 37.0 |
| Average daytime temperature (°C) | 32.0 | 33.3 | 37.5 | 39.7 | 40.0 | 36.0 | 35.6 | 35.1 | 36.6 | 38.3 | 36.9 | 33.2 |
| Average temperature (°C) | 24.1 | 25.3 | 30.1 | 32.3 | 33.1 | 30.2 | 29.9 | 29.1 | 30.5 | 31.8 | 30.3 | 25.4 |
| Average night temperature (°C) | 17.1 | 18.3 | 23.1 | 24.9 | 25.8 | 24.9 | 24.9 | 24.1 | 24.7 | 25.3 | 24.1 | 19.0 |
| Absolute minimum temperature (°C) | 13.9 | 14.9 | 21.2 | 21.0 | 23.1 | 22.4 | 22.2 | 22.0 | 22.4 | 22.2 | 20.8 | 15.1 |
| 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 | 11.7 | 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) | 10.7 | 10.9 | 10.7 | 11.1 | 11.6 | 10.0 | 9.7 | 9.7 | 10.2 | 10.3 | 10.2 | 10.3 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 42 | 20 | 30 | 49 | 1 | 0 | 0 |
| Sunny days | 31 | 28 | 31 | 29 | 31 | 14 | 15 | 13 | 24 | 27 | 30 | 31 |
| Rainy days | 0 | 0 | 0 | 1 | 0 | 16 | 16 | 18 | 6 | 4 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Umm Sayyāl is at