Average annual temperature is 14.5 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: -5.5 °C
Number of sunny days: 151 days
Number of rainy days: 210 days
Number of snow days: 4 days
Look at detailed online map of Chāleh Sū
* Weather data for Chāleh Sū 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) | 15.3 | 17.1 | 27.1 | 28.3 | 28.7 | 28.7 | 30.3 | 31.5 | 29.8 | 27.2 | 24.6 | 22.0 |
| Average daytime temperature (°C) | 5.9 | 8.3 | 15.7 | 18.5 | 20.3 | 23.6 | 25.1 | 28.0 | 21.8 | 19.8 | 19.1 | 14.1 |
| Average temperature (°C) | 2.9 | 4.0 | 11.1 | 14.0 | 16.8 | 20.2 | 21.8 | 23.3 | 18.7 | 16.2 | 14.3 | 9.8 |
| Average night temperature (°C) | -0.3 | -0.1 | 7.1 | 9.9 | 13.5 | 16.7 | 18.8 | 19.2 | 16.0 | 12.8 | 10.3 | 6.2 |
| Absolute minimum temperature (°C) | -4.4 | -5.5 | 1.7 | 1.1 | 6.9 | 14.1 | 16.7 | 16.8 | 12.9 | 9.8 | 5.5 | 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.5 | 7.5 | 6.3 | 8.9 | 8.0 | 8.7 | 7.0 | 9.7 | 5.1 | 6.8 | 7.1 | 6.4 |
| Precipitation (mm) | 243 | 175 | 170 | 39 | 167 | 161 | 173 | 173 | 458 | 300 | 136 | 156 |
| Sunny days | 10 | 16 | 9 | 15 | 11 | 10 | 12 | 20 | 6 | 13 | 14 | 15 |
| Rainy days | 19 | 10 | 22 | 15 | 20 | 20 | 19 | 11 | 24 | 18 | 16 | 16 |
| Snow days | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Chāleh Sū during the most sunny months:
The largest precipitation sum in Chāleh Sū is at