Average annual temperature is 18.3 °C
Absolute maximum temperature: 39.8 °C
Absolute minimum temperature: -8.2 °C
Number of sunny days: 309 days
Number of rainy days: 56 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) | 15.3 | 24.2 | 23.5 | 28.6 | 33.5 | 38.7 | 39.8 | 34.9 | 34.9 | 31.7 | 22.4 | 18.0 |
| Average daytime temperature (°C) | 7.6 | 17.7 | 19.0 | 23.9 | 29.3 | 34.8 | 34.5 | 32.5 | 29.9 | 24.9 | 18.0 | 15.1 |
| Average temperature (°C) | 3.0 | 12.5 | 13.9 | 18.3 | 23.6 | 28.8 | 28.2 | 26.2 | 23.2 | 19.4 | 12.8 | 9.5 |
| Average night temperature (°C) | -1.7 | 7.3 | 8.3 | 12.0 | 16.8 | 21.7 | 20.7 | 18.9 | 15.7 | 13.0 | 6.9 | 4.0 |
| Absolute minimum temperature (°C) | -8.2 | -1.5 | 3.6 | 7.5 | 11.9 | 17.5 | 17.5 | 14.6 | 10.0 | 9.0 | 3.3 | -0.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.2 | 12.0 | 12.9 | 13.6 | 14.0 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| 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) | 8.6 | 9.9 | 10.3 | 11.0 | 11.4 | 11.2 | 12.2 | 11.9 | 11.4 | 10.3 | 9.3 | 9.4 |
| Precipitation (mm) | 37 | 7 | 24 | 4 | 7 | 0 | 0 | 0 | 0 | 15 | 24 | 1 |
| Sunny days | 23 | 26 | 13 | 24 | 27 | 27 | 31 | 31 | 30 | 27 | 21 | 29 |
| Rainy days | 8 | 2 | 18 | 6 | 4 | 3 | 0 | 0 | 0 | 4 | 9 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bāyān is at