Average annual temperature is 11.6 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: -16.0 °C
Number of sunny days: 256 days
Number of rainy days: 91 days
Number of snow days: 18 days
Look at detailed online map of Sīāmān
* Weather data for Sīāmān 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) | 7.0 | 9.5 | 17.4 | 22.9 | 27.6 | 33.3 | 36.6 | 35.8 | 33.1 | 24.9 | 17.7 | 13.1 |
| Average daytime temperature (°C) | 0.2 | 0.3 | 12.8 | 17.5 | 21.9 | 28.4 | 32.1 | 31.9 | 27.7 | 20.2 | 14.0 | 9.3 |
| Average temperature (°C) | -4.4 | -4.3 | 6.7 | 10.7 | 15.1 | 20.8 | 24.3 | 24.1 | 19.8 | 13.5 | 7.5 | 3.7 |
| Average night temperature (°C) | -8.5 | -9.5 | 0.9 | 3.5 | 7.9 | 12.8 | 16.5 | 16.3 | 12.5 | 7.1 | 2.0 | -1.0 |
| Absolute minimum temperature (°C) | -15.5 | -16.0 | -3.3 | -4.3 | 1.4 | 8.8 | 13.2 | 12.0 | 8.8 | 4.1 | -4.4 | -4.0 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.8 | 8.8 | 8.5 | 10.8 | 12.0 | 12.9 | 12.8 | 11.8 | 11.1 | 9.5 | 8.0 | 7.6 |
| Precipitation (mm) | 61 | 19 | 72 | 34 | 42 | 10 | 0 | 2 | 0 | 8 | 27 | 20 |
| Sunny days | 21 | 18 | 11 | 16 | 13 | 25 | 30 | 28 | 30 | 19 | 23 | 22 |
| Rainy days | 2 | 1 | 20 | 13 | 18 | 5 | 1 | 3 | 0 | 12 | 7 | 9 |
| Snow days | 8 | 9 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Sīāmān during the most sunny months:
The largest precipitation sum in Sīāmān is at