Climate Insights for Ulaanbaatar

Sükhbaatar, Mongolia

Hottest
July
23°C peak73°F peak
Coldest
January
-29°C low-20°F low
Wettest
August
82 mm rain3.2 in rain
Best to Visit
June, July
Mild temps & low rain

Climate Overview

The climate in Ulaanbaatar is cold. The average annual temperature is -1°C and approximately 335 mm of precipitation falls per year. August is the wettest month, receiving around 82 mm of rainfall. Ulaanbaatar is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, December, February, when temperatures can drop to -29°C. Snowfall occurs from January to December, with around 70cm accumulating over the season.The climate in Ulaanbaatar is cold. The average annual temperature is 29°F and approximately 13.2 in of precipitation falls per year. August is the wettest month, receiving around 3.2 in of rainfall. Ulaanbaatar is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, December, February, when temperatures can drop to -20°F. Snowfall occurs from January to December, with around 28in accumulating over the season.

Temperature

-30°-20°-10°0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: -17°Average: -23°Min: -29°FebMax: -12°Average: -18°Min: -26°MarMax: 0°Average: -7°Min: -14°AprMax: 8°Average: 2°Min: -4°MayMax: 15°Average: 9°Min: 2°JunMax: 21°Average: 15°Min: 9°JulMax: 23°Average: 17°Min: 12°AugMax: 20°Average: 15°Min: 10°SepMax: 15°Average: 9°Min: 3°OctMax: 5°Average: -2°Min: -7°NovMax: -7°Average: -13°Min: -19°DecMax: -16°Average: -21°Min: -27°
Max
Average
Min
-20°F-10°F0°F10°F20°F30°F40°F50°F60°F70°F80°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 2°FAverage: -9°FMin: -20°FFebMax: 11°FAverage: -1°FMin: -15°FMarMax: 32°FAverage: 20°FMin: 7°FAprMax: 47°FAverage: 36°FMin: 25°FMayMax: 59°FAverage: 48°FMin: 36°FJunMax: 69°FAverage: 59°FMin: 47°FJulMax: 73°FAverage: 63°FMin: 54°FAugMax: 68°FAverage: 58°FMin: 49°FSepMax: 59°FAverage: 47°FMin: 37°FOctMax: 41°FAverage: 29°FMin: 19°FNovMax: 19°FAverage: 9°FMin: -2°FDecMax: 4°FAverage: -7°FMin: -16°F
Max
Average
Min

Ulaanbaatar has a wide annual temperature range, spanning 52°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 23°C with a mean of 17°C. January brings the harshest conditions, with lows dropping to -29°C and an average temperature of -23°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 12°C shift in average temperatures.Ulaanbaatar has a wide annual temperature range, spanning 93°F from the coldest to warmest months. July is the warmest month, though highs remain moderate at 73°F with a mean of 63°F. January brings the harshest conditions, with lows dropping to -20°F and an average temperature of -9°F. On average, daily temperatures fluctuate by about 22°F between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 21°F shift in average temperatures.

Precipitation

0mm25mm50mm75mm100mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 2mmSnow: 2mmFebPrecipitation: 3mmSnow: 3mmMarPrecipitation: 9mmSnow: 8mmAprPrecipitation: 16mmSnow: 12mmMayPrecipitation: 26mmSnow: 10mmJunPrecipitation: 50mmSnow: 1mmJulPrecipitation: 75mmSnow: 0mmAugPrecipitation: 82mmSnow: 0mmSepPrecipitation: 45mmSnow: 8mmOctPrecipitation: 14mmSnow: 11mmNovPrecipitation: 12mmSnow: 12mmDecPrecipitation: 3mmSnow: 3mm
Precipitation
Snow
0in2in4inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 0.1inSnow (in): 1inFebPrecipitation: 0.1inSnow (in): 1inMarPrecipitation: 0.3inSnow (in): 3inAprPrecipitation: 0.6inSnow (in): 5inMayPrecipitation: 1inSnow (in): 4inJunPrecipitation: 2inSnow (in): 0inJulPrecipitation: 2.9inSnow (in): 0inAugPrecipitation: 3.2inSnow (in): 0inSepPrecipitation: 1.8inSnow (in): 3inOctPrecipitation: 0.6inSnow (in): 4inNovPrecipitation: 0.5inSnow (in): 5inDecPrecipitation: 0.1inSnow (in): 1in
Precipitation
Snow (in)

Ulaanbaatar is a quite dry location, receiving approximately 335 mm of precipitation annually, which averages out to around 28 mm per month. The wettest month is August, averaging 82 mm of rainfall. July and June also tend to see above-average precipitation. The driest month is January, with just 2 mm. That's 79 mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 70cm accumulating over the season. November typically sees the most snow at around 12cm.Ulaanbaatar is a quite dry location, receiving approximately 13.2 in of precipitation annually, which averages out to around 1.1 in per month. The wettest month is August, averaging 3.2 in of rainfall. July and June also tend to see above-average precipitation. The driest month is January, with just 0.1 in. That's 3.1 in less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 28in accumulating over the season. November typically sees the most snow at around 5in.

Wind

0km/h5km/h10km/h15km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 7km/hFebWind Speed: 8km/hMarWind Speed: 10km/hAprWind Speed: 12km/hMayWind Speed: 12km/hJunWind Speed: 10km/hJulWind Speed: 9km/hAugWind Speed: 9km/hSepWind Speed: 10km/hOctWind Speed: 9km/hNovWind Speed: 8km/hDecWind Speed: 7km/h
Wind Speed
0mph5mph10mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 5mphFebWind Speed: 5mphMarWind Speed: 6mphAprWind Speed: 7mphMayWind Speed: 7mphJunWind Speed: 6mphJulWind Speed: 5mphAugWind Speed: 5mphSepWind Speed: 6mphOctWind Speed: 6mphNovWind Speed: 5mphDecWind Speed: 4mph
Wind Speed

Ulaanbaatar is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months.Ulaanbaatar is mildly breezy, with an average annual wind speed of 6mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is May, averaging 7mph, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3mph gap between the calmest and windiest months.

Best Time to Visit

Jan-23°-9°F
Feb-18°-1°F
Mar-7°20°F
Apr2°36°F
May9°48°F
Jun15°59°F
Jul17°63°F
Aug15°58°F
Sep9°47°F
Oct-2°29°F
Nov-13°9°F
Dec-21°-7°F

The best time to visit Ulaanbaatar is during June and July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 62 mm per month. By contrast, January can be quite cold with temperatures dropping to -29°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Ulaanbaatar is during June and July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 61°F with modest rainfall averaging 2.4 in per month. By contrast, January can be quite cold with temperatures dropping to -20°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Ulaanbaatar based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Ulaanbaatar based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-29 °C-20 °F
-17 °C2 °F
7 km/h5 mph
2 mm0.1 in
2 cm1 in
Feb
-26 °C-15 °F
-12 °C11 °F
8 km/h5 mph
3 mm0.1 in
3 cm1 in
Mar
-14 °C7 °F
0 °C32 °F
10 km/h6 mph
9 mm0.3 in
8 cm3 in
Apr
-4 °C25 °F
8 °C47 °F
12 km/h7 mph
16 mm0.6 in
12 cm5 in
May
2 °C36 °F
15 °C59 °F
12 km/h7 mph
26 mm1 in
10 cm4 in
Jun
9 °C47 °F
21 °C69 °F
10 km/h6 mph
50 mm2 in
1 cm0 in
Jul
12 °C54 °F
23 °C73 °F
9 km/h5 mph
75 mm2.9 in
0 cm0 in
Aug
10 °C49 °F
20 °C68 °F
9 km/h5 mph
82 mm3.2 in
0 cm0 in
Sep
3 °C37 °F
15 °C59 °F
10 km/h6 mph
45 mm1.8 in
8 cm3 in
OctCurrent
-7 °C19 °F
5 °C41 °F
9 km/h6 mph
14 mm0.6 in
11 cm4 in
Nov
-19 °C-2 °F
-7 °C19 °F
8 km/h5 mph
12 mm0.5 in
12 cm5 in
Dec
-27 °C-16 °F
-16 °C4 °F
7 km/h4 mph
3 mm0.1 in
3 cm1 in