Average annual temperature is 27.5 °C
Absolute maximum temperature: 47.8 °C
Absolute minimum temperature: 11.7 °C
Number of sunny days: 339 days
Number of rainy days: 26 days
Look at detailed online map of Ar Rumaylī
* Weather data for Ar Rumaylī 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) | 29.2 | 33.9 | 36.5 | 40.3 | 43.3 | 47.8 | 46.5 | 45.2 | 37.8 | 41.7 | 34.0 | 30.6 |
| Average daytime temperature (°C) | 25.9 | 29.9 | 32.1 | 35.5 | 39.4 | 41.8 | 39.7 | 38.0 | 34.8 | 34.8 | 31.4 | 28.7 |
| Average temperature (°C) | 21.1 | 22.3 | 25.2 | 28.6 | 31.4 | 33.9 | 31.7 | 29.9 | 28.3 | 28.2 | 26.3 | 22.9 |
| Average night temperature (°C) | 15.9 | 15.6 | 19.0 | 22.8 | 24.8 | 27.3 | 25.8 | 24.1 | 23.8 | 23.0 | 21.6 | 16.9 |
| Absolute minimum temperature (°C) | 11.7 | 12.3 | 14.1 | 18.3 | 21.3 | 24.9 | 23.5 | 22.5 | 21.8 | 20.8 | 19.5 | 12.8 |
| 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 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.1 | 13.3 | 13.2 | 12.8 | 12.3 | 11.7 | 11.2 | 10.9 |
| 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) | 10.0 | 10.2 | 10.3 | 11.4 | 11.8 | 11.2 | 9.7 | 10.2 | 10.6 | 10.3 | 10.0 | 9.8 |
| Precipitation (mm) | 2 | 0 | 5 | 26 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
| Sunny days | 30 | 27 | 25 | 18 | 31 | 30 | 30 | 30 | 30 | 29 | 28 | 31 |
| Rainy days | 1 | 1 | 6 | 12 | 0 | 0 | 1 | 1 | 0 | 2 | 2 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ar Rumaylī is at