Ulaanbaatar weather in January
Temperature, rain and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Poor
Best time to visit: May – September
What is the weather like in Ulaanbaatar in January?
In January, Ulaanbaatar is freezing cold: daytime highs average −13 °C, and nights often drop below freezing (−25 °C). Expect around 5 hours of sunshine a day. It hardly ever rains. All in all, January is not an ideal month for a holiday in Ulaanbaatar.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 35 | 38 | 44 |
| Day | −12° | −13° | −8° |
| Night | −22° | −25° | −22° |
| Sun | 4 h | 5 h | 7 h |
| Rain days | 1 | 1 | 1 |
More details for January
- Daylight
- 8 h 48 min08:37 – 17:25
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 42 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+8Asia/Ulaanbaatar
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %38 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- Warm jacket
- Hat, scarf & gloves
Ulaanbaatar in January: quick answers
Is Ulaanbaatar hot in January?
No. In January, Ulaanbaatar is freezing cold: daytime highs average −13 °C and nights drop to about −25 °C.
Does it rain much in Ulaanbaatar in January?
It hardly ever rains.
Ulaanbaatar month by month
The whole year in UlaanbaatarAll destinations: MongoliaWhere to go in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences