Average annual temperature is 10.5 °C
Absolute maximum temperature: 30.6 °C
Absolute minimum temperature: -16.8 °C
Number of sunny days: 190 days
Number of rainy days: 150 days
Number of snow days: 25 days
Look at detailed online map of Īstī
* Weather data for Īstī 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) | 11.2 | 13.3 | 19.2 | 22.5 | 25.8 | 26.8 | 30.1 | 30.6 | 29.6 | 22.6 | 19.9 | 16.4 |
| Average daytime temperature (°C) | 1.5 | 3.6 | 12.4 | 15.9 | 17.7 | 22.0 | 24.3 | 26.0 | 18.7 | 16.6 | 14.4 | 9.5 |
| Average temperature (°C) | -3.0 | -1.2 | 7.3 | 10.6 | 13.3 | 17.3 | 19.4 | 20.9 | 14.4 | 11.6 | 9.6 | 4.9 |
| Average night temperature (°C) | -7.1 | -5.7 | 2.3 | 5.2 | 8.7 | 12.6 | 14.6 | 15.7 | 10.7 | 7.4 | 5.3 | 0.6 |
| Absolute minimum temperature (°C) | -13.7 | -16.8 | -4.3 | -1.2 | 1.6 | 9.8 | 11.7 | 11.6 | 6.9 | 4.3 | -3.2 | -7.1 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.7 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 6.7 | 8.1 | 8.7 | 10.6 | 10.4 | 12.8 | 11.9 | 11.5 | 8.6 | 9.2 | 7.9 | 7.5 |
| Precipitation (mm) | 15 | 22 | 69 | 51 | 109 | 38 | 45 | 33 | 51 | 58 | 22 | 33 |
| Sunny days | 23 | 14 | 12 | 8 | 6 | 12 | 20 | 22 | 13 | 18 | 21 | 21 |
| Rainy days | 2 | 2 | 16 | 20 | 25 | 18 | 11 | 9 | 17 | 13 | 9 | 8 |
| Snow days | 6 | 12 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Īstī during the most sunny months:
The largest precipitation sum in Īstī is at