Temperature
Cold by day, freezing at night.
Not the best time: Cold weather is the main limitation.
Cold by day, freezing at night.
Mostly dry. About 1 wet day, the lowest monthly average.
Good sunshine this month.
Humidity is rarely noticeable in the cool air.
In January, afternoons feel about -6° and nights feel near -22°.
Partly cloudy skies this month.
Calm winds are typical in January.
January late afternoons are around 3°F, easing to about -4°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 4 | -18 | 0.1 | 1 | 7.8 | 76 |
| Feb | 14 | -12 | 0.1 | 1 | 9.2 | 72 |
| Mar | 32 | 7 | 0.3 | 3 | 10.6 | 57 |
| Apr | 49 | 26 | 0.6 | 4 | 11.2 | 48 |
| May | 61 | 38 | 1.3 | 7 | 12.1 | 50 |
| Jun | 71 | 50 | 2.1 | 10 | 12.2 | 59 |
| Jul | 75 | 56 | 2.5 | 11 | 11.4 | 66 |
| Aug | 71 | 52 | 2.6 | 11 | 11.1 | 68 |
| Sep | 61 | 39 | 1.4 | 8 | 10.2 | 64 |
| Oct | 44 | 22 | 0.6 | 4 | 9.2 | 63 |
| Nov | 22 | 1 | 0.3 | 2 | 8.0 | 71 |
| Dec | 7 | -12 | 0.1 | 1 | 7.3 | 75 |
Similar climates
Want a side-by-side climate view? Compare Ulaanbaatar with Arosa.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology