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December weather forecast in Ulan Bator

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

30 November, sun

	641 mmHg		72%
	3.6 m/s

30 November, Sunday. day, -12°; night, -20°; clear

1 December, mon

	640 mmHg		73%
	3.9 m/s

1 December, Monday. day, -11°; night, -20°; partly cloudy

2 December, tue

	641 mmHg		73%
	3.8 m/s

2 December, Tuesday. day, -12°; night, -20°; clear

3 December, wed

	641 mmHg		74%
	3.6 m/s

3 December, Wednesday. day, -12°; night, -22°; clear

4 December, thu

	642 mmHg		73%
	3.4 m/s

4 December, Thursday. day, -13°; night, -22°; clear

5 December, fri

	642 mmHg		73%
	3.4 m/s

5 December, Friday. day, -13°; night, -22°; clear

6 December, sat

	642 mmHg		72%
	3 m/s

6 December, Saturday. day, -13°; night, -22°; clear

7 December, sun

	640 mmHg		72%
	3.3 m/s

7 December, Sunday. day, -13°; night, -21°; clear

8 December, mon

	640 mmHg		72%
	3 m/s

8 December, Monday. day, -13°; night, -22°; partly cloudy

9 December, tue

	641 mmHg		74%
	3.7 m/s

9 December, Tuesday. day, -13°; night, -22°; overcast

10 December, wed

	641 mmHg		75%
	3.4 m/s

10 December, Wednesday. day, -14°; night, -22°; clear

11 December, thu

	641 mmHg		74%
	3.5 m/s

11 December, Thursday. day, -14°; night, -23°; overcast

12 December, fri

	641 mmHg		73%
	3.3 m/s

12 December, Friday. day, -14°; night, -23°; clear

13 December, sat

	641 mmHg		73%
	3.2 m/s

13 December, Saturday. day, -14°; night, -22°; clear

14 December, sun

	641 mmHg		74%
	3.3 m/s

14 December, Sunday. day, -14°; night, -22°; overcast

15 December, mon

	642 mmHg		71%
	3.7 m/s

15 December, Monday. day, -14°; night, -23°; partly cloudy

16 December, tue

	642 mmHg		72%
	3.2 m/s

16 December, Tuesday. day, -15°; night, -23°; clear

17 December, wed

	641 mmHg		72%
	3.2 m/s

17 December, Wednesday. day, -14°; night, -23°; clear

18 December, thu

	641 mmHg		72%
	3.4 m/s

18 December, Thursday. day, -14°; night, -23°; clear

19 December, fri

	641 mmHg		71%
	3 m/s

19 December, Friday. day, -14°; night, -23°; clear

20 December, sat

	641 mmHg		72%
	3 m/s

20 December, Saturday. day, -15°; night, -24°; clear

21 December, sun

	641 mmHg		72%
	3.1 m/s

21 December, Sunday. day, -14°; night, -23°; clear

22 December, mon

	640 mmHg		72%
	3.1 m/s

22 December, Monday. day, -14°; night, -23°; clear

23 December, tue

	640 mmHg		73%
	3.2 m/s

23 December, Tuesday. day, -14°; night, -23°; partly cloudy

24 December, wed

	641 mmHg		74%
	3.3 m/s

24 December, Wednesday. day, -15°; night, -23°; partly cloudy

25 December, thu

	641 mmHg		75%
	2.9 m/s

25 December, Thursday. day, -15°; night, -24°; partly cloudy

26 December, fri

	641 mmHg		76%
	3.3 m/s

26 December, Friday. day, -16°; night, -25°; clear

27 December, sat

	640 mmHg		75%
	3.4 m/s

27 December, Saturday. day, -16°; night, -24°; snow

28 December, sun

	640 mmHg		74%
	3.6 m/s

28 December, Sunday. day, -16°; night, -24°; partly cloudy

29 December, mon

	641 mmHg		75%
	3.6 m/s

29 December, Monday. day, -16°; night, -25°; snow

30 December, tue

	640 mmHg		75%
	2.9 m/s

30 December, Tuesday. day, -16°; night, -25°; clear

31 December, wed

	639 mmHg		74%
	3.3 m/s

31 December, Wednesday. day, -15°; night, -25°; clear

1 January, thu

	640 mmHg		73%
	3.6 m/s

1 January, Thursday. day, -16°; night, -25°; partly cloudy

2 January, fri

	641 mmHg		74%
	3.2 m/s

2 January, Friday. day, -17°; night, -25°; partly cloudy

3 January, sat

	640 mmHg		75%
	3.1 m/s

3 January, Saturday. day, -17°; night, -25°; partly cloudy

Average data for 10 years

Ulan Bator December

19

sunny days

2

days with precipitation

3

cloudy days

19 sunny days; 2 days with precipitation; 3 cloudy days;

73

%

air humidity

2

m/s

WindS

5

mm of precipitation

(2% of annual average)

air humidity 73%; 5 millimeters of precipitation (2% of annual average); Wind southerly 2 Meters per second

Weather graphs for December

TemperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SW

SW

SW

S

SW

S

S

S

SW

S

S

S

S

SW

SW

S

S

S

S

S

S

S

S

S

S

S

S

SW

SW

S

S

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

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26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Ulan-Ude
Zaozyornyj
Gusinoozersk
Sagan-Nur
Kyahta
Krasny Chikoy
Babushkin
Yelan
Tarbagatay

Cities with similar weather in December

Astana
Petropavlovsk
Pavlodar
Kostanai
Kokshetau
Burabaj
Schuchinsk
Ekibastuz
Rudny

The weather forecast for December 2025 is based on historical data from the past 10 years.

In December, the weather in Ulan Bator is typically freezing. Average daily high temperature in December is about 14 degrees below zero. On average, Ulan Bator has 19 sunny, 7 partly cloudy, 3 cloudy, and 2 snowy days in December. The snowfalls are usually light. December as well as January and February is considered the most uncomfortable time to visit Ulan Bator.

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