Average annual temperature is 15.9 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -15.6 °C
Number of sunny days: 287 days
Number of rainy days: 74 days
Number of snow days: 4 days
Look at detailed online map of Rāyen
* Weather data for Rāyen 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) | 13.0 | 19.9 | 20.8 | 25.8 | 30.5 | 36.7 | 36.9 | 33.4 | 33.2 | 29.4 | 19.9 | 19.8 |
| Average daytime temperature (°C) | 6.1 | 15.2 | 17.1 | 20.8 | 26.1 | 31.3 | 33.6 | 31.1 | 29.2 | 23.9 | 17.1 | 15.2 |
| Average temperature (°C) | 0.6 | 9.0 | 11.1 | 14.8 | 20.2 | 25.6 | 26.9 | 24.2 | 22.7 | 17.2 | 10.6 | 7.8 |
| Average night temperature (°C) | -5.0 | 2.4 | 4.2 | 7.5 | 12.9 | 18.3 | 18.8 | 15.7 | 14.7 | 9.9 | 3.9 | 1.0 |
| Absolute minimum temperature (°C) | -15.6 | -3.4 | 0.7 | 2.2 | 6.3 | 12.6 | 14.3 | 12.0 | 9.3 | 5.8 | -0.3 | -2.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.1 | 12.0 | 12.9 | 13.6 | 14.0 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.4 | 9.6 | 10.6 | 10.9 | 11.2 | 10.1 | 12.5 | 11.9 | 11.3 | 10.2 | 9.3 | 9.3 |
| Precipitation (mm) | 39 | 17 | 15 | 26 | 20 | 7 | 0 | 0 | 0 | 6 | 13 | 0 |
| Sunny days | 21 | 22 | 21 | 17 | 17 | 23 | 30 | 30 | 30 | 27 | 21 | 28 |
| Rainy days | 6 | 6 | 10 | 13 | 14 | 7 | 1 | 1 | 0 | 4 | 9 | 3 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rāyen is at