Average annual temperature is 16.9 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: -10.6 °C
Number of sunny days: 295 days
Number of rainy days: 67 days
Number of snow days: 3 days
Look at detailed online map of Chāj
* Weather data for Chāj 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) | 13.7 | 20.3 | 24.0 | 27.7 | 32.0 | 39.1 | 40.3 | 36.3 | 35.9 | 31.0 | 21.9 | 16.8 |
| Average daytime temperature (°C) | 5.4 | 12.4 | 18.7 | 23.4 | 28.0 | 34.2 | 33.7 | 31.5 | 30.1 | 25.0 | 18.0 | 14.6 |
| Average temperature (°C) | 0.5 | 7.5 | 13.0 | 17.7 | 22.2 | 27.7 | 27.0 | 24.9 | 22.7 | 18.9 | 12.2 | 8.5 |
| Average night temperature (°C) | -4.4 | 2.3 | 6.6 | 10.5 | 14.7 | 19.6 | 19.3 | 17.1 | 14.1 | 11.4 | 5.9 | 2.3 |
| Absolute minimum temperature (°C) | -10.6 | -4.7 | 1.3 | 4.1 | 7.5 | 14.6 | 16.4 | 10.8 | 5.7 | 7.7 | 2.4 | -0.7 |
| 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) | 7.9 | 8.3 | 9.9 | 11.2 | 11.5 | 11.8 | 12.9 | 12.1 | 11.5 | 10.2 | 9.0 | 8.5 |
| Precipitation (mm) | 40 | 47 | 27 | 9 | 7 | 0 | 0 | 0 | 0 | 2 | 8 | 1 |
| Sunny days | 22 | 11 | 17 | 26 | 21 | 28 | 31 | 31 | 30 | 28 | 22 | 28 |
| Rainy days | 6 | 17 | 14 | 4 | 10 | 2 | 0 | 0 | 0 | 3 | 8 | 3 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Chāj is at