Average annual temperature is 26.8 °C
Absolute maximum temperature: 44.9 °C
Absolute minimum temperature: 12.2 °C
Number of sunny days: 331 days
Number of rainy days: 34 days
Look at detailed online map of As Siwayḩ
* Weather data for As Siwayḩ 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) | 28.5 | 33.5 | 35.0 | 39.5 | 42.9 | 44.9 | 40.1 | 38.5 | 40.3 | 41.5 | 33.4 | 30.2 |
| Average daytime temperature (°C) | 25.0 | 29.0 | 30.7 | 32.5 | 38.3 | 37.7 | 33.9 | 33.9 | 34.6 | 34.8 | 30.8 | 28.2 |
| Average temperature (°C) | 21.2 | 22.6 | 25.0 | 27.3 | 31.1 | 31.2 | 28.5 | 27.8 | 28.5 | 28.6 | 26.4 | 23.4 |
| Average night temperature (°C) | 17.3 | 17.1 | 20.1 | 23.0 | 26.7 | 27.3 | 25.3 | 24.4 | 25.1 | 24.5 | 21.9 | 18.5 |
| Absolute minimum temperature (°C) | 14.8 | 12.2 | 17.6 | 18.4 | 22.4 | 25.8 | 24.0 | 22.9 | 23.2 | 21.7 | 19.5 | 15.2 |
| 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 | 11.4 | 12.0 | 12.7 | 13.2 | 13.5 | 13.3 | 12.9 | 12.3 | 11.6 | 11.1 | 10.8 |
| 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 | 10.4 | 10.5 | 11.0 | 11.9 | 11.6 | 10.0 | 10.8 | 10.7 | 10.5 | 10.0 | 9.8 |
| Precipitation (mm) | 1 | 0 | 35 | 25 | 0 | 0 | 23 | 0 | 0 | 4 | 4 | 0 |
| Sunny days | 29 | 28 | 25 | 19 | 30 | 30 | 29 | 31 | 28 | 27 | 24 | 31 |
| Rainy days | 2 | 0 | 6 | 11 | 1 | 0 | 2 | 0 | 2 | 4 | 6 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in As Siwayḩ is at