Average annual temperature is 3.4 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -29.9 °C
Number of sunny days: 218 days
Number of rainy days: 110 days
Number of snow days: 37 days
Look at detailed online map of Bayan
* Weather data for Bayan Mongolia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 5.0 | 10.4 | 16.8 | 24.3 | 22.8 | 30.6 | 35.2 | 32.7 | 32.0 | 17.4 | 13.1 | 8.3 |
| Average daytime temperature (°C) | -7.9 | -2.5 | 6.3 | 8.6 | 15.7 | 23.1 | 24.1 | 24.6 | 17.7 | 12.8 | -3.1 | -8.7 |
| Average temperature (°C) | -13.4 | -9.1 | -0.4 | 2.7 | 9.2 | 17.2 | 18.9 | 18.7 | 11.8 | 6.2 | -8.2 | -13.6 |
| Average night temperature (°C) | -18.1 | -15.0 | -7.0 | -3.1 | 2.7 | 11.5 | 13.8 | 12.7 | 6.4 | -0.4 | -12.7 | -17.8 |
| Absolute minimum temperature (°C) | -29.9 | -19.2 | -17.9 | -12.2 | -2.4 | 4.0 | 9.0 | 6.7 | -2.2 | -4.7 | -20.3 | -26.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.0 | 10.3 | 11.9 | 13.6 | 15.1 | 15.9 | 15.5 | 14.2 | 12.6 | 10.9 | 9.3 | 8.5 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 7.3 | 8.7 | 10.0 | 10.9 | 10.0 | 11.3 | 10.7 | 11.3 | 9.3 | 9.2 | 7.3 | 6.4 |
| Precipitation (mm) | 1 | 6 | 13 | 5 | 74 | 70 | 146 | 42 | 71 | 5 | 28 | 7 |
| Sunny days | 28 | 22 | 25 | 21 | 11 | 7 | 11 | 12 | 11 | 24 | 22 | 24 |
| Rainy days | 0 | 0 | 2 | 2 | 17 | 23 | 20 | 19 | 19 | 6 | 2 | 0 |
| Snow days | 3 | 6 | 4 | 7 | 3 | 0 | 0 | 0 | 0 | 1 | 6 | 7 |
Months with the longest average daylight duration in Bayan:
The largest precipitation sum in Bayan is at