Average annual temperature is 18.5 °C
Absolute maximum temperature: 45.7 °C
Absolute minimum temperature: -2.0 °C
Number of sunny days: 276 days
Number of rainy days: 89 days
Look at detailed online map of Ar Riyāḑ
* Weather data for Ar Riyāḑ Syria is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 17.5 | 24.7 | 27.3 | 30.3 | 35.7 | 37.4 | 39.6 | 45.7 | 37.4 | 32.4 | 29.4 | 19.7 |
| Average daytime temperature (°C) | 13.7 | 13.5 | 19.5 | 23.1 | 28.4 | 31.7 | 36.1 | 36.6 | 33.8 | 28.8 | 22.2 | 16.5 |
| Average temperature (°C) | 8.2 | 7.5 | 13.5 | 16.3 | 21.0 | 24.0 | 28.1 | 28.1 | 25.7 | 22.2 | 16.2 | 10.9 |
| Average night temperature (°C) | 4.1 | 2.6 | 8.7 | 10.4 | 14.1 | 17.5 | 21.5 | 21.7 | 19.7 | 17.2 | 11.6 | 6.8 |
| Absolute minimum temperature (°C) | 1.2 | -2.0 | 3.5 | 5.8 | 8.7 | 14.1 | 18.5 | 20.1 | 18.5 | 14.0 | 4.6 | 1.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.7 | 9.1 | 9.5 | 11.0 | 12.5 | 12.7 | 13.0 | 12.2 | 11.1 | 9.5 | 8.0 | 8.1 |
| Precipitation (mm) | 29 | 50 | 57 | 10 | 14 | 0 | 0 | 0 | 0 | 7 | 46 | 21 |
| Sunny days | 21 | 17 | 18 | 22 | 20 | 28 | 30 | 30 | 29 | 20 | 21 | 20 |
| Rainy days | 10 | 11 | 13 | 8 | 11 | 2 | 1 | 1 | 1 | 11 | 9 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ar Riyāḑ is at