Average annual temperature is 0.6 °C
Absolute maximum temperature: 31.1 °C
Absolute minimum temperature: -39.1 °C
Number of sunny days: 216 days
Number of rainy days: 90 days
Number of snow days: 59 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) | -2.9 | 3.1 | 9.4 | 17.0 | 18.7 | 31.1 | 30.9 | 26.3 | 25.5 | 14.2 | 3.3 | 0.1 |
| Average daytime temperature (°C) | -13.1 | -6.0 | 1.7 | 3.9 | 10.6 | 21.4 | 23.4 | 20.9 | 12.9 | 8.5 | -5.1 | -12.1 |
| Average temperature (°C) | -17.2 | -11.2 | -3.7 | -1.4 | 5.3 | 15.6 | 17.9 | 15.6 | 7.8 | 3.1 | -9.2 | -16.3 |
| Average night temperature (°C) | -22.3 | -16.3 | -9.7 | -7.5 | -0.5 | 8.9 | 11.7 | 10.2 | 2.5 | -1.7 | -13.1 | -20.3 |
| Absolute minimum temperature (°C) | -39.1 | -21.9 | -18.8 | -16.5 | -6.8 | 0.9 | 5.8 | 4.9 | -5.2 | -6.3 | -21.3 | -32.8 |
| 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 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.2 | 11.9 | 13.7 | 15.2 | 16.0 | 15.6 | 14.3 | 12.6 | 10.8 | 9.3 | 8.4 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 6.9 | 8.5 | 10.0 | 11.1 | 11.7 | 13.5 | 11.6 | 11.4 | 9.7 | 9.2 | 6.3 | 6.0 |
| Precipitation (mm) | 4 | 1 | 4 | 5 | 32 | 28 | 65 | 27 | 61 | 4 | 21 | 7 |
| Sunny days | 22 | 25 | 24 | 18 | 9 | 16 | 17 | 13 | 11 | 21 | 16 | 24 |
| Rainy days | 0 | 0 | 0 | 1 | 18 | 14 | 14 | 18 | 17 | 5 | 2 | 1 |
| Snow days | 9 | 3 | 7 | 11 | 4 | 0 | 0 | 0 | 2 | 5 | 12 | 6 |
The best time to visit Altan during the most sunny months:
Months with the longest average daylight duration in Altan:
The largest precipitation sum in Altan is at