Average annual temperature is 2.9 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -33.1 °C
Number of sunny days: 225 days
Number of rainy days: 97 days
Number of snow days: 43 days
Look at detailed online map of Altan
* Weather data for Altan 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) | 0.2 | 9.2 | 17.7 | 24.5 | 26.4 | 30.5 | 35.3 | 30.9 | 29.4 | 18.0 | 5.7 | 4.1 |
| Average daytime temperature (°C) | -10.6 | -2.8 | 6.9 | 9.0 | 15.7 | 24.0 | 24.7 | 23.9 | 17.4 | 12.2 | -3.9 | -12.5 |
| Average temperature (°C) | -16.5 | -10.0 | -0.7 | 2.5 | 9.7 | 18.0 | 19.6 | 18.5 | 12.1 | 5.6 | -8.7 | -16.5 |
| Average night temperature (°C) | -22.2 | -16.0 | -8.3 | -3.7 | 3.2 | 11.8 | 14.3 | 12.8 | 6.9 | -0.3 | -13.5 | -20.9 |
| Absolute minimum temperature (°C) | -33.1 | -22.0 | -15.5 | -10.5 | -2.1 | 4.1 | 8.9 | 6.5 | -0.9 | -5.1 | -21.2 | -31.1 |
| 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 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.8 | 10.2 | 11.9 | 13.7 | 15.3 | 16.1 | 15.7 | 14.3 | 12.6 | 10.8 | 9.2 | 8.4 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 6.9 | 8.7 | 10.1 | 10.7 | 9.3 | 11.2 | 10.6 | 10.9 | 7.9 | 8.6 | 6.9 | 6.3 |
| Precipitation (mm) | 3 | 2 | 11 | 5 | 75 | 98 | 77 | 102 | 98 | 9 | 15 | 5 |
| Sunny days | 27 | 26 | 25 | 20 | 14 | 14 | 10 | 11 | 11 | 25 | 17 | 25 |
| Rainy days | 0 | 0 | 3 | 2 | 12 | 16 | 21 | 20 | 19 | 3 | 1 | 0 |
| Snow days | 4 | 2 | 3 | 8 | 5 | 0 | 0 | 0 | 0 | 3 | 12 | 6 |
Months with the longest average daylight duration in Altan:
The largest precipitation sum in Altan is at