Average annual temperature is 9.0 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -24.6 °C
Number of sunny days: 251 days
Number of rainy days: 92 days
Number of snow days: 22 days
Look at detailed online map of Byānān
* Weather data for Byānān Afghanistan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 3.6 | 6.2 | 13.6 | 18.4 | 22.2 | 32.2 | 31.1 | 30.7 | 29.6 | 23.2 | 15.5 | 11.2 |
| Average daytime temperature (°C) | -4.5 | 0.2 | 7.5 | 13.6 | 18.0 | 25.9 | 27.2 | 28.1 | 24.5 | 17.3 | 10.7 | 6.9 |
| Average temperature (°C) | -7.9 | -2.8 | 2.6 | 7.7 | 12.1 | 19.4 | 20.4 | 20.6 | 17.5 | 10.9 | 5.5 | 1.4 |
| Average night temperature (°C) | -12.1 | -6.3 | -2.1 | 1.6 | 6.0 | 12.4 | 13.6 | 12.7 | 10.3 | 4.5 | 0.7 | -3.3 |
| Absolute minimum temperature (°C) | -24.6 | -13.1 | -7.0 | -5.2 | 0.1 | 7.8 | 10.5 | 9.9 | 4.1 | 1.1 | -2.9 | -8.9 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.4 | 8.8 | 8.6 | 11.3 | 11.9 | 12.8 | 12.7 | 12.3 | 11.2 | 10.1 | 8.9 | 8.3 |
| Precipitation (mm) | 52 | 16 | 114 | 45 | 55 | 9 | 12 | 0 | 0 | 13 | 5 | 7 |
| Sunny days | 22 | 19 | 12 | 11 | 11 | 20 | 22 | 31 | 28 | 22 | 25 | 28 |
| Rainy days | 0 | 1 | 16 | 19 | 20 | 10 | 9 | 0 | 2 | 9 | 5 | 1 |
| Snow days | 9 | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Byānān is at