Average annual temperature is 29.4 °C
Absolute maximum temperature: 44.1 °C
Absolute minimum temperature: 13.4 °C
Number of sunny days: 328 days
Number of rainy days: 37 days
Look at detailed online map of Riyām
* Weather data for Riyām Oman is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 32.2 | 32.5 | 34.7 | 36.1 | 43.4 | 44.1 | 40.1 | 42.1 | 38.9 | 41.2 | 33.7 | 28.9 |
| Average daytime temperature (°C) | 24.2 | 27.1 | 30.0 | 31.7 | 39.2 | 39.6 | 37.9 | 38.0 | 36.3 | 34.8 | 30.4 | 27.4 |
| Average temperature (°C) | 20.7 | 23.2 | 26.3 | 28.5 | 35.0 | 36.2 | 34.8 | 34.4 | 32.6 | 30.9 | 26.2 | 23.4 |
| Average night temperature (°C) | 16.7 | 18.6 | 22.2 | 24.5 | 29.9 | 32.0 | 31.0 | 30.2 | 28.0 | 26.5 | 21.5 | 18.7 |
| Absolute minimum temperature (°C) | 13.4 | 15.5 | 19.2 | 19.6 | 24.4 | 30.0 | 29.2 | 29.0 | 24.3 | 21.8 | 18.1 | 16.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.9 | 11.4 | 12.0 | 12.7 | 13.3 | 13.6 | 13.4 | 12.9 | 12.3 | 11.6 | 11.0 | 10.7 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.7 | 10.5 | 10.7 | 11.2 | 11.9 | 11.9 | 10.5 | 11.0 | 11.2 | 10.2 | 10.0 | 9.8 |
| Precipitation (mm) | 17 | 0 | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 25 | 8 | 0 |
| Sunny days | 22 | 28 | 27 | 22 | 31 | 30 | 31 | 31 | 30 | 26 | 21 | 29 |
| Rainy days | 9 | 0 | 4 | 8 | 0 | 0 | 0 | 0 | 0 | 5 | 9 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Riyām is at