Average annual temperature is 15.4 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -12.1 °C
Number of sunny days: 292 days
Number of rainy days: 63 days
Number of snow days: 10 days
Look at detailed online map of Rejān
* Weather data for Rejān Iran is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 7.3 | 13.6 | 18.9 | 24.0 | 31.2 | 35.5 | 35.8 | 34.2 | 32.5 | 26.7 | 17.7 | 14.3 |
| Average daytime temperature (°C) | 2.3 | 7.6 | 15.2 | 19.8 | 25.8 | 31.6 | 33.5 | 30.8 | 28.2 | 21.8 | 14.0 | 10.6 |
| Average temperature (°C) | -1.3 | 3.3 | 10.2 | 14.5 | 20.3 | 26.3 | 28.3 | 25.5 | 23.1 | 17.1 | 9.9 | 6.6 |
| Average night temperature (°C) | -5.1 | -1.1 | 4.5 | 8.5 | 13.8 | 19.9 | 22.4 | 19.2 | 17.6 | 11.9 | 5.5 | 2.1 |
| Absolute minimum temperature (°C) | -12.1 | -7.0 | -0.4 | 1.0 | 6.4 | 13.4 | 19.3 | 14.0 | 10.9 | 8.1 | 0.7 | -1.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.8 | 8.2 | 9.9 | 11.0 | 12.1 | 12.9 | 12.8 | 12.0 | 10.7 | 9.9 | 8.9 | 8.7 |
| Precipitation (mm) | 35 | 33 | 18 | 12 | 4 | 5 | 0 | 0 | 0 | 6 | 18 | 5 |
| Sunny days | 19 | 17 | 18 | 18 | 26 | 26 | 31 | 30 | 30 | 25 | 24 | 28 |
| Rainy days | 4 | 10 | 12 | 12 | 5 | 4 | 0 | 1 | 0 | 6 | 6 | 3 |
| Snow days | 8 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rejān is at