Average annual temperature is 14.6 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -17.2 °C
Number of sunny days: 260 days
Number of rainy days: 99 days
Number of snow days: 6 days
Look at detailed online map of Rūmanjān
* Weather data for Rūmanjān 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) | 9.7 | 15.3 | 18.7 | 23.9 | 28.1 | 35.5 | 35.8 | 31.7 | 31.4 | 25.8 | 16.9 | 12.8 |
| Average daytime temperature (°C) | 1.6 | 8.0 | 14.3 | 19.5 | 24.4 | 31.1 | 30.1 | 27.6 | 26.2 | 20.6 | 13.4 | 10.4 |
| Average temperature (°C) | -1.6 | 4.5 | 10.4 | 14.8 | 19.6 | 25.4 | 24.1 | 22.0 | 21.0 | 16.9 | 10.3 | 7.3 |
| Average night temperature (°C) | -5.8 | 0.2 | 6.0 | 9.3 | 13.9 | 19.2 | 18.2 | 16.6 | 15.5 | 12.3 | 6.7 | 3.7 |
| Absolute minimum temperature (°C) | -17.2 | -12.6 | 0.7 | 2.2 | 5.6 | 14.1 | 15.1 | 12.6 | 7.5 | 7.5 | -0.9 | -3.1 |
| 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) | 8.0 | 8.2 | 9.8 | 11.3 | 11.7 | 12.0 | 12.9 | 12.1 | 11.5 | 10.3 | 9.0 | 8.6 |
| Precipitation (mm) | 40 | 112 | 47 | 15 | 21 | 2 | 0 | 0 | 0 | 15 | 22 | 4 |
| Sunny days | 20 | 11 | 11 | 21 | 13 | 26 | 31 | 30 | 30 | 21 | 19 | 27 |
| Rainy days | 6 | 16 | 20 | 9 | 18 | 4 | 0 | 1 | 0 | 10 | 11 | 4 |
| Snow days | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rūmanjān is at