Average annual temperature is 25.4 °C
Absolute maximum temperature: 41.1 °C
Absolute minimum temperature: 4.7 °C
Number of sunny days: 294 days
Number of rainy days: 71 days
Look at detailed online map of Riyāḑ Bin Ghannām
* Weather data for Riyāḑ Bin Ghannām Saudi Arabia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.2 | 32.2 | 32.0 | 33.6 | 38.1 | 40.9 | 41.1 | 40.5 | 38.4 | 36.0 | 31.0 | 29.4 |
| Average daytime temperature (°C) | 23.8 | 28.7 | 28.7 | 30.5 | 34.6 | 37.3 | 39.9 | 38.9 | 37.2 | 32.0 | 28.5 | 25.3 |
| Average temperature (°C) | 16.5 | 20.0 | 21.6 | 23.2 | 28.1 | 31.4 | 33.4 | 32.7 | 31.1 | 26.0 | 22.5 | 17.9 |
| Average night temperature (°C) | 9.9 | 11.6 | 14.1 | 16.5 | 20.9 | 24.2 | 26.3 | 25.6 | 23.3 | 18.9 | 15.9 | 10.4 |
| Absolute minimum temperature (°C) | 6.5 | 7.5 | 8.2 | 13.7 | 17.5 | 19.3 | 25.1 | 23.5 | 19.2 | 16.3 | 13.0 | 4.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.0 | 11.5 | 12.0 | 12.6 | 13.1 | 13.4 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 10.9 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.6 | 10.7 | 10.5 | 10.9 | 11.1 | 10.9 | 10.5 | 10.3 | 10.4 | 10.1 | 9.5 | 9.8 |
| Precipitation (mm) | 5 | 0 | 23 | 30 | 12 | 5 | 0 | 0 | 0 | 12 | 3 | 1 |
| Sunny days | 22 | 27 | 19 | 13 | 19 | 25 | 31 | 30 | 30 | 26 | 23 | 29 |
| Rainy days | 9 | 1 | 12 | 17 | 12 | 5 | 0 | 1 | 0 | 5 | 7 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Riyāḑ Bin Ghannām is at