Ulaan-Uul Weather in December
What's the weather like in Ulaan-Uul (Bayanhongor) in December 2025?
The climate in Ulaan-Uul during December can be summarized as very cold and very dry.
December is in the winter in Ulaan-Uul and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing -9°C (16°F), whilst at night -22°C (-7°F) is normal.
| Daytime temperature | -9.2°C 15.5°F |
|---|---|
| Nightly temperature | -21.9°C -7.3°F |
| Average temperature | -15.5°C 4.1°F |
| Daily sunshine | 7.4 hrs |
| Avg rainfall | 1 mm 0 ins |
| Rainy days | 3 days |
| Sea temperature | 10.7°C 51.2°F |
| Humidity | 65% |
| Windspeed | 8.3kph 5 mph |
On average December is the driest month of the year in Ulaan-Uul with around 1mm 0 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 7.4 hours of sunshine per day.
December temperatures in Ulaan-Uul
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Ulaan-Uul in December 2025.
Other monthly averages
Best places to visit in December
Ulaan-Uul weather stats
| Hottest month: | July | 22.8°C 73°F |
|---|---|---|
| Driest month: | December | 1mm 0ins |
| Sunniest month: | January | 8.9hrs |
| Coldest month: | January | -11.3°C 11.7°F |
| Wettest month: | July | 62mm 2.4ins |
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