Mongolia
Ulaanbaatar in December: weather & travel advice
This month's data profile
Clear transition month
Ulaanbaatar in December is climatically mixed. The average daily high is around -14 °C. With about 1 rainy day it is very dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
45/100 · #11
Warmth
#11
Dryness
#3
Sun
#12
Published best categories: none
Ulaanbaatar · DecemberPhoto: Ulaanbaatar City Tourism Department · CC BY-SA 4.0Climate facts
- Average high
- -14 °C
- Average low
- -22 °C
- Rainy days (est.)
- 1 rainy day (est.)
- Sun (est.)
- 2 h/day
- Humidity
- 89 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| November | -6 | -16 | 2 | 8 | 2.3 | 80 | 2.6 | 48 |
| December (selected) | -14 | -22 | 1 | 4 | 1.8 | 89 | 2.4 | 45 |
| January | -15 | -25 | 0 | 3 | 2.3 | 90 | 2.3 | 45 |
How do the previous and next months compare?
Baseline: December (45/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| November | +3 | +7.7 °C | +6.5 °C | +1.1 | +3.3 mm | +0.5 h | -8.4 % | +0.2 m/s |
| January | ±0 | -1.5 °C | -2.5 °C | -0.4 | -1.3 mm | +0.5 h | +1.2 % | -0.1 m/s |
All twelve months in context
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Frequently asked questions
How warm is Ulaanbaatar in December?
The average daily high is around -14 °C, with an average daily low of about -22 °C.
Does it rain a lot in Ulaanbaatar in December?
The curated estimate is about 1 rainy day per month, not a directly measured long-term average. Total precipitation averages around 4 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Ulaanbaatar?
By the climate score, May, June, July and August are the strongest months for Ulaanbaatar. December is not among them.