Average annual temperature is 13.5 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: -17.2 °C
Number of sunny days: 274 days
Number of rainy days: 77 days
Number of snow days: 14 days
Look at detailed online map of Seyjān
* Weather data for Seyjān 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) | 6.2 | 11.4 | 18.1 | 23.6 | 29.5 | 35.2 | 36.6 | 36.5 | 33.2 | 24.8 | 18.2 | 13.4 |
| Average daytime temperature (°C) | 1.1 | 3.3 | 13.4 | 18.8 | 23.9 | 30.3 | 34.1 | 32.5 | 28.7 | 20.5 | 13.9 | 10.1 |
| Average temperature (°C) | -3.1 | -1.7 | 7.9 | 12.5 | 17.2 | 23.2 | 27.6 | 26.3 | 22.1 | 14.9 | 8.8 | 5.2 |
| Average night temperature (°C) | -6.7 | -6.7 | 2.7 | 5.8 | 10.2 | 15.6 | 20.5 | 19.6 | 15.6 | 10.0 | 3.9 | 0.7 |
| Absolute minimum temperature (°C) | -12.3 | -17.2 | -1.1 | -4.0 | 2.4 | 10.5 | 17.5 | 15.0 | 11.3 | 7.0 | -2.6 | -2.5 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 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) | 7.0 | 9.1 | 8.8 | 11.0 | 12.0 | 12.8 | 12.7 | 11.8 | 11.2 | 9.4 | 8.5 | 7.9 |
| Precipitation (mm) | 35 | 36 | 62 | 14 | 23 | 6 | 0 | 0 | 0 | 20 | 19 | 12 |
| Sunny days | 18 | 19 | 12 | 18 | 21 | 23 | 31 | 31 | 30 | 25 | 23 | 23 |
| Rainy days | 4 | 4 | 19 | 12 | 10 | 7 | 0 | 0 | 0 | 6 | 7 | 8 |
| Snow days | 9 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Seyjān during the most sunny months:
The largest precipitation sum in Seyjān is at