Average annual temperature is 11.5 °C
Absolute maximum temperature: 34.7 °C
Absolute minimum temperature: -14.0 °C
Number of sunny days: 238 days
Number of rainy days: 102 days
Number of snow days: 25 days
Look at detailed online map of Bīān Darreh
* Weather data for Bīān Darreh 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) | 8.4 | 9.6 | 14.2 | 18.8 | 23.1 | 30.0 | 34.7 | 34.6 | 32.1 | 21.2 | 16.7 | 13.2 |
| Average daytime temperature (°C) | 2.1 | 0.6 | 9.7 | 13.6 | 18.6 | 25.6 | 31.5 | 31.6 | 27.3 | 18.3 | 10.7 | 7.8 |
| Average temperature (°C) | -2.4 | -3.2 | 5.3 | 8.7 | 13.7 | 20.4 | 25.1 | 25.4 | 20.8 | 12.9 | 6.7 | 3.6 |
| Average night temperature (°C) | -6.0 | -6.8 | 1.4 | 3.7 | 8.5 | 14.2 | 18.2 | 19.1 | 14.6 | 7.9 | 3.1 | 0.2 |
| Absolute minimum temperature (°C) | -10.4 | -14.0 | -7.0 | -8.3 | 2.2 | 10.3 | 15.1 | 14.3 | 10.6 | 5.5 | -6.7 | -4.2 |
| 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 | 9.8 |
| 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) | 6.7 | 7.8 | 8.1 | 10.6 | 11.8 | 13.5 | 13.2 | 12.0 | 11.4 | 9.5 | 7.3 | 6.8 |
| Precipitation (mm) | 60 | 93 | 199 | 85 | 54 | 0 | 0 | 0 | 1 | 22 | 103 | 102 |
| Sunny days | 17 | 16 | 10 | 13 | 12 | 27 | 31 | 29 | 28 | 19 | 16 | 20 |
| Rainy days | 3 | 0 | 21 | 15 | 19 | 3 | 0 | 2 | 2 | 12 | 14 | 11 |
| Snow days | 11 | 12 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Bīān Darreh during the most sunny months:
The largest precipitation sum in Bīān Darreh is at