Average annual temperature is 15.2 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: -11.5 °C
Number of sunny days: 289 days
Number of rainy days: 72 days
Number of snow days: 4 days
Look at detailed online map of Kastān
* Weather data for Kastān 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) | 8.8 | 14.8 | 22.6 | 30.4 | 34.3 | 35.8 | 38.1 | 37.8 | 35.1 | 26.9 | 21.3 | 13.8 |
| Average daytime temperature (°C) | 3.7 | 8.4 | 18.2 | 22.6 | 26.7 | 32.2 | 34.0 | 32.1 | 28.3 | 21.6 | 16.4 | 10.4 |
| Average temperature (°C) | -0.8 | 3.3 | 12.1 | 16.2 | 20.3 | 25.5 | 27.1 | 25.4 | 20.8 | 15.6 | 10.9 | 5.5 |
| Average night temperature (°C) | -4.8 | -0.9 | 6.4 | 9.6 | 13.5 | 18.8 | 19.6 | 17.6 | 13.5 | 9.6 | 5.7 | 1.1 |
| Absolute minimum temperature (°C) | -11.5 | -5.9 | 1.2 | 1.6 | 5.9 | 15.8 | 16.4 | 12.8 | 8.4 | 3.2 | 0.0 | -1.6 |
| 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 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 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) | 7.9 | 7.7 | 9.1 | 11.1 | 11.3 | 12.5 | 13.0 | 12.2 | 11.5 | 9.6 | 8.7 | 7.7 |
| Precipitation (mm) | 26 | 63 | 40 | 14 | 24 | 6 | 0 | 0 | 0 | 8 | 22 | 7 |
| Sunny days | 22 | 15 | 19 | 20 | 21 | 25 | 30 | 30 | 30 | 26 | 23 | 28 |
| Rainy days | 6 | 12 | 12 | 10 | 10 | 5 | 1 | 1 | 0 | 5 | 7 | 3 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Kastān during the most sunny months:
The largest precipitation sum in Kastān is at