Average annual temperature is 17.3 °C
Absolute maximum temperature: 40.0 °C
Absolute minimum temperature: -13.6 °C
Number of sunny days: 305 days
Number of rainy days: 56 days
Number of snow days: 4 days
Look at detailed online map of Sīr
* Weather data for Sīr 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) | 10.0 | 15.4 | 23.8 | 30.4 | 33.7 | 40.0 | 39.2 | 36.0 | 34.7 | 27.7 | 19.8 | 15.3 |
| Average daytime temperature (°C) | 4.5 | 9.1 | 18.6 | 24.1 | 28.4 | 34.7 | 35.4 | 32.8 | 29.2 | 23.1 | 16.1 | 11.7 |
| Average temperature (°C) | 0.7 | 5.3 | 14.1 | 18.7 | 22.7 | 28.9 | 29.2 | 26.7 | 23.0 | 17.9 | 11.8 | 7.3 |
| Average night temperature (°C) | -3.8 | 1.2 | 8.8 | 12.0 | 15.6 | 21.8 | 22.2 | 19.5 | 15.5 | 12.0 | 7.1 | 2.8 |
| Absolute minimum temperature (°C) | -13.6 | -6.2 | 3.2 | 3.3 | 7.8 | 18.1 | 19.0 | 13.4 | 9.0 | 8.0 | 2.3 | -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 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.7 | 7.6 | 9.3 | 11.4 | 11.5 | 12.3 | 12.8 | 12.2 | 11.5 | 9.8 | 8.9 | 8.1 |
| Precipitation (mm) | 12 | 36 | 33 | 2 | 4 | 1 | 0 | 0 | 0 | 2 | 9 | 3 |
| Sunny days | 25 | 14 | 20 | 26 | 22 | 27 | 31 | 31 | 30 | 29 | 24 | 26 |
| Rainy days | 3 | 13 | 11 | 4 | 9 | 3 | 0 | 0 | 0 | 2 | 6 | 5 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sīr is at