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Ulaanbaatar in December: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Ulaanbaatar in December will be like? Take a look at our weather guide for Ulaanbaatar, based on historical data.
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December

Weather in Ulaanbaatar in December 2024

Good Weather
Cold
☀️
Sunny
Planning a trip to Ulaanbaatar in December? You are in luck! The weather is generally good, with an average maximum temperature of -13°C and approximately 15 sunny days. Just be prepared for some rain, as there are usually around 3 rainy days and 2 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
-13°C
Avg. max. temperature
-38°C
Min.
+5°C
Max.
0 mm
Total precipitation
74%
Avg. humidity
1 m/s
Avg. wind
15 ☀️
Sunny Days
13 ⛅️
Cloudy
0 🌦
Rainy
Our opinion: Ulaanbaatar has good weather in December.

Average temperature in Ulaanbaatar in December

Here are the expected maximum, average and minimum temperatures in Ulaanbaatar for December based on the historical data.
Last Year
Historical Data

Going from a maximum of -2°C during the day to a minimum of -38°C during the night, the temperature in December averages around -16°C.

The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from -10°C to -10°C.

Is Ulaanbaatar warm or cold in December?

Ulaanbaatar is typically cold in December.

Maximum temperatures go down compared to the previous month from -5°C to -13°C. The minimum temperature also goes down from -17°C to -24°C.

Wear your winter warms as it will be cold. To save space, layer, and don’t forget gloves and a scarf.

December is one of the coolest months in Ulaanbaatar, here is the comparison with other months:

Climate in Ulaanbaatar in December

Ulaanbaatar weather looks like this, on average, in December and the surrounding months.
NovemberDecemberJanuary
Avg. temperature
-5°C-13°C-15°C
Min. temperature
-39°C-38°C-41°C
Max. temperature
+13°C+5°C-2°C
Rainfall
0 mm0 mm0 mm
Wind
1 m/s1 m/s1 m/s
Humidity
71%74%75%
Air pressure
1022 HPa1025 HPa1026 HPa
Sunny days
141516
Cloudy days
121313
Rainy days
000
Snowy days
432

December weather is still as good as in November. It’s getting colder in December. From -5°C in the day, the average maximum temperature lowers to -13°C. The rainfall amount in December stays the same as in the previous month with a 0 mm of total precipitation. Humidity rises from 71% to 74%. The average wind speed doesn’t change much during December, staying around 1 m/s. The good news is there are likely to be more sunny days in December, from 14 to 15.

January brings much the same weather, it remains good.

Wind

Wind speed in Ulaanbaatar in December based on historical data.
Last Year
Historical Data

The average wind speed is 1 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Ulaanbaatar is gradually decreasing during December, going from 2 m/s to 1 m/s over the course of the month.

Snow

Amount of snow in mm during December in Ulaanbaatar based on historical data.
Last Year
Historical Data
Typically, there is a 10% chance of snow on an average day in December, with a total monthly snowfall of approximately 9 mm.

Here’s how December is compared with other months in the amount of snow, total mm:

How was the weather last December in Ulaanbaatar?

This is the weather in Ulaanbaatar in December 2023:
1 December
☀️
-10°C
2 December
☀️
-8°C
3 December
☀️
-7°C
4 December
☁️
-4°C
5 December
☁️
-7°C
6 December
☁️
-8°C
7 December
☁️
-2°C
8 December
☀️
-17°C
9 December
☀️
-20°C
10 December
☁️
-18°C
11 December
☁️
-18°C
12 December
☁️
-22°C
13 December
🌨️
-21°C
14 December
🌨️
-22°C
15 December
☀️
-27°C
16 December
☀️
-27°C
17 December
☁️
-23°C
18 December
☁️
-22°C
19 December
☀️
-27°C
20 December
☀️
-27°C
21 December
☀️
-22°C
22 December
☀️
-23°C
23 December
☀️
-19°C
24 December
☀️
-12°C
25 December
☁️
-11°C
26 December
☁️
-12°C
27 December
☀️
-11°C
28 December
☁️
-8°C
29 December
🌨️
-8°C
30 December
☁️
-11°C
31 December
☀️
-10°C
In December 2023 Ulaanbaatar had 15 sunny days, 13 cloudy days, and 0 rainy days. The average maximum temperature was -16°C, with an absolute maximum of -2°C and a minimum of -27°C. The average humidity was 78%, with a maximum of 96% and a minimum of 62%. The average wind speed was 1 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in December?

Climate Change over Years

This is how Ulaanbaatar climate have been changing during last 43 years period.

The climate in Ulaanbaatar in December has not changed much over the last 43 years.

The average temperature was the lowest in 1985 (+4°C) and the highest in 2007 (+9°C). The driest year was 2017 with only 192 mm of rainfall, and the wettest year was 1984 with 432 mm.

FAQ

Frequently asked questions about the weather in Ulaanbaatar in December:

Is December a good time to visit Ulaanbaatar?

December is a really good time to go to Ulaanbaatar. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Ulaanbaatar.

Can you sunbathe in Ulaanbaatar in December?

Not really, December is not the best time to sunbathe, unless you visit a local solarium.

Is Ulaanbaatar rainy in December?

Ulaanbaatar is usually dry in December. Plan your packing around outdoor activities and exploring.

Is it sunny in Ulaanbaatar in December?

The amount of sunny days in Ulaanbaatar during December varies; prepare for a mix of clouds and sun.

Monthly weather in Ulaanbaatar

Source of the data

For this page, we’ve looked at the typical weather in Ulaanbaatar, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.