Average annual temperature is 15.8 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: -16.3 °C
Number of sunny days: 297 days
Number of rainy days: 64 days
Number of snow days: 4 days
Look at detailed online map of Sīāhū
* Weather data for Sīāhū 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) | 9.2 | 14.2 | 19.0 | 23.1 | 31.6 | 35.4 | 36.7 | 34.1 | 33.7 | 28.7 | 19.8 | 16.8 |
| Average daytime temperature (°C) | 4.5 | 10.2 | 15.4 | 19.9 | 26.2 | 32.2 | 34.7 | 31.2 | 30.3 | 24.0 | 16.1 | 13.2 |
| Average temperature (°C) | -0.2 | 5.6 | 9.6 | 14.2 | 20.2 | 26.3 | 28.5 | 25.0 | 23.8 | 17.9 | 10.4 | 7.2 |
| Average night temperature (°C) | -5.0 | 1.3 | 3.1 | 7.2 | 13.0 | 18.4 | 20.3 | 16.7 | 15.4 | 10.8 | 4.2 | 1.2 |
| Absolute minimum temperature (°C) | -16.3 | -4.8 | -1.3 | 1.6 | 7.6 | 15.7 | 16.1 | 11.1 | 9.2 | 6.5 | -0.3 | -4.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.1 | 12.0 | 12.9 | 13.7 | 14.0 | 13.9 | 13.2 | 12.3 | 11.4 | 10.7 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.5 | 8.4 | 10.3 | 11.2 | 11.7 | 12.9 | 11.7 | 12.0 | 10.9 | 10.3 | 9.3 | 9.0 |
| Precipitation (mm) | 47 | 38 | 23 | 13 | 4 | 0 | 0 | 0 | 0 | 0 | 12 | 15 |
| Sunny days | 19 | 16 | 18 | 20 | 27 | 29 | 31 | 31 | 30 | 30 | 21 | 25 |
| Rainy days | 8 | 12 | 13 | 10 | 4 | 1 | 0 | 0 | 0 | 1 | 9 | 6 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sīāhū is at