Average annual temperature is 16.2 °C
Absolute maximum temperature: 28.6 °C
Absolute minimum temperature: 2.9 °C
Number of sunny days: 268 days
Number of rainy days: 97 days
Look at detailed online map of Riyām
* Weather data for Riyām Yemen is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 22.0 | 23.3 | 23.5 | 22.9 | 25.0 | 27.7 | 28.2 | 28.6 | 25.7 | 22.0 | 22.2 | 21.2 |
| Average daytime temperature (°C) | 17.6 | 20.7 | 19.3 | 20.6 | 22.5 | 25.4 | 27.0 | 25.5 | 24.1 | 19.6 | 18.4 | 16.7 |
| Average temperature (°C) | 11.7 | 14.2 | 13.9 | 15.6 | 17.9 | 20.3 | 21.7 | 20.2 | 19.5 | 15.2 | 13.2 | 11.3 |
| Average night temperature (°C) | 6.3 | 8.0 | 9.0 | 11.0 | 13.5 | 15.2 | 17.0 | 15.3 | 14.9 | 11.1 | 8.6 | 6.6 |
| Absolute minimum temperature (°C) | 2.9 | 3.9 | 6.3 | 8.8 | 11.4 | 13.5 | 14.4 | 13.4 | 12.8 | 8.9 | 5.4 | 3.9 |
| 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 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.1 | 12.5 | 12.9 | 13.0 | 13.0 | 12.6 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.4 | 10.8 | 10.7 | 11.0 | 10.8 | 11.2 | 10.5 | 10.9 | 10.6 | 10.2 | 10.2 | 10.3 |
| Precipitation (mm) | 0 | 2 | 43 | 39 | 34 | 0 | 0 | 10 | 1 | 16 | 0 | 0 |
| Sunny days | 29 | 26 | 13 | 1 | 12 | 29 | 26 | 17 | 29 | 25 | 30 | 31 |
| Rainy days | 2 | 2 | 18 | 29 | 19 | 1 | 5 | 14 | 1 | 6 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Riyām is at