Average annual temperature is 21.4 °C
Absolute maximum temperature: 42.5 °C
Absolute minimum temperature: -4.1 °C
Number of sunny days: 319 days
Number of rainy days: 46 days
Look at detailed online map of Bāyān
* Weather data for Bāyān 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) | 18.1 | 27.2 | 26.2 | 32.9 | 37.8 | 42.5 | 42.2 | 39.8 | 37.8 | 34.7 | 26.6 | 21.6 |
| Average daytime temperature (°C) | 10.5 | 22.0 | 22.4 | 27.3 | 33.5 | 38.1 | 38.2 | 36.4 | 33.2 | 29.2 | 22.2 | 18.9 |
| Average temperature (°C) | 5.2 | 15.0 | 16.7 | 21.3 | 27.2 | 31.8 | 31.7 | 30.0 | 26.5 | 22.8 | 16.2 | 12.2 |
| Average night temperature (°C) | 0.5 | 7.8 | 10.3 | 13.9 | 19.6 | 24.5 | 24.5 | 22.8 | 19.3 | 16.1 | 9.7 | 6.3 |
| Absolute minimum temperature (°C) | -4.1 | 0.5 | 5.2 | 9.3 | 13.9 | 21.0 | 22.4 | 18.0 | 13.8 | 12.6 | 5.8 | 2.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.6 | 11.2 | 12.0 | 12.8 | 13.6 | 13.9 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.4 |
| 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) | 8.4 | 10.0 | 10.5 | 11.0 | 12.0 | 11.6 | 12.0 | 11.9 | 11.5 | 10.4 | 9.4 | 9.5 |
| Precipitation (mm) | 27 | 2 | 22 | 7 | 0 | 1 | 0 | 0 | 0 | 4 | 3 | 14 |
| Sunny days | 22 | 24 | 20 | 27 | 29 | 27 | 31 | 31 | 30 | 28 | 21 | 29 |
| Rainy days | 9 | 4 | 11 | 3 | 2 | 3 | 0 | 0 | 0 | 3 | 9 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bāyān is at