Average annual temperature is -1.0 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -42.4 °C
Number of sunny days: 206 days
Number of rainy days: 97 days
Number of snow days: 62 days
Look at detailed online map of Tes Sum
* Weather data for Tes Sum 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) | -3.5 | 0.4 | 12.2 | 19.4 | 20.9 | 33.8 | 32.9 | 31.8 | 28.7 | 19.1 | 2.7 | 0.2 |
| Average daytime temperature (°C) | -17.5 | -10.7 | 0.4 | 6.5 | 12.7 | 24.8 | 26.3 | 24.3 | 16.0 | 11.1 | -9.3 | -19.5 |
| Average temperature (°C) | -23.3 | -18.4 | -7.4 | -0.3 | 6.8 | 17.8 | 19.8 | 17.3 | 9.6 | 3.5 | -14.4 | -24.4 |
| Average night temperature (°C) | -29.9 | -25.7 | -16.5 | -6.9 | -0.1 | 9.7 | 12.4 | 10.0 | 3.1 | -3.2 | -19.9 | -29.5 |
| Absolute minimum temperature (°C) | -41.9 | -31.7 | -24.0 | -16.4 | -5.0 | 2.7 | 6.5 | 4.3 | -6.6 | -7.6 | -33.5 | -42.4 |
| 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) | 8.7 | 10.1 | 11.9 | 13.8 | 15.4 | 16.2 | 15.8 | 14.4 | 12.6 | 10.8 | 9.1 | 8.2 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 6.5 | 8.4 | 9.5 | 11.0 | 10.7 | 13.3 | 12.4 | 11.0 | 9.7 | 8.6 | 5.3 | 5.7 |
| Precipitation (mm) | 5 | 2 | 9 | 13 | 50 | 14 | 43 | 47 | 48 | 9 | 29 | 11 |
| Sunny days | 22 | 22 | 23 | 19 | 7 | 19 | 13 | 10 | 13 | 23 | 15 | 20 |
| Rainy days | 1 | 1 | 1 | 4 | 18 | 11 | 18 | 21 | 15 | 5 | 2 | 0 |
| Snow days | 8 | 5 | 7 | 7 | 6 | 0 | 0 | 0 | 2 | 3 | 13 | 11 |
The best time to visit Tes Sum during the most sunny months:
Months with the longest average daylight duration in Tes Sum:
The largest precipitation sum in Tes Sum is at