Average annual temperature is 24.8 °C
Absolute maximum temperature: 40.1 °C
Absolute minimum temperature: 4.8 °C
Number of sunny days: 334 days
Number of rainy days: 31 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) | 28.3 | 31.1 | 33.5 | 32.8 | 35.2 | 38.9 | 40.1 | 39.1 | 37.2 | 33.3 | 30.4 | 30.3 |
| Average daytime temperature (°C) | 24.4 | 28.4 | 28.2 | 30.5 | 33.1 | 36.0 | 37.3 | 36.3 | 34.8 | 29.9 | 27.4 | 24.2 |
| Average temperature (°C) | 18.1 | 21.2 | 22.1 | 25.0 | 27.4 | 29.5 | 30.3 | 29.5 | 29.1 | 25.0 | 22.2 | 18.0 |
| Average night temperature (°C) | 11.3 | 12.9 | 16.0 | 18.8 | 21.3 | 22.4 | 23.2 | 22.5 | 21.7 | 18.3 | 16.0 | 10.6 |
| Absolute minimum temperature (°C) | 8.0 | 8.7 | 10.9 | 16.2 | 19.1 | 20.9 | 21.3 | 21.2 | 18.6 | 16.4 | 12.5 | 4.8 |
| 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 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.7 | 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) | 10.2 | 10.7 | 10.8 | 11.4 | 11.1 | 11.1 | 10.0 | 10.6 | 10.6 | 10.3 | 10.5 | 10.1 |
| Precipitation (mm) | 0 | 0 | 25 | 2 | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Sunny days | 31 | 28 | 22 | 23 | 23 | 30 | 31 | 27 | 30 | 28 | 30 | 31 |
| Rainy days | 0 | 0 | 9 | 7 | 8 | 0 | 0 | 4 | 0 | 3 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Riyām is at