Ulaanbaatar, Mongolia Weather

Mongolia 🇲🇳 · Local time 02:01
54°
Patchy rain nearby Feels like 53° · High 67° / Low 50°
Wind
2 mph
Humidity
87%
0 Low
Updated 2 hours ago

Ulaanbaatar hourly forecast: next 24 hours

Today's high of 67°F (19°C) is about 4°F (2°C) below the typical August high of 71°F (22°C).

Now
29%
3 AM
39%
4 AM
29%
5 AM
36%
6 AM
34%
6:03 AM
Sunrise
7 AM
25%
8 AM
20%
9 AM
23%
10 AM
25%
11 AM
22%
12 PM
36%
1 PM
48%
2 PM
36%
3 PM
43%
4 PM
26%
5 PM
36%
6 PM
39%
7 PM
50%
7:43 PM
Sunset
8 PM
20%
9 PM
35%
10 PM
31%
11 PM
69%
12 AM
79%
1 AM
71%

Full Ulaanbaatar hourly forecast →

Current conditions in detail

Feels like
53°
Wind
2 mph
E · gusts 7 mph
Humidity
87%
Pressure
29.78 in
Visibility
6 mi
Precipitation
0.0 in
80% chance today

Ulaanbaatar weather tomorrow (Friday, August 28)

Tomorrow in Ulaanbaatar looks patchy rain nearby, with a high of 50° and an overnight low of 42°. There is a 91% chance of rain - plan accordingly. Winds top out near 12 mph, and the UV index reaches 4 (moderate).

High / Low
50° / 42°
Precipitation
91%
Sunrise / sunset
06:05 AM / 07:41 PM

See the full Ulaanbaatar 14-day forecast →

Ulaanbaatar 14-day forecast

Today
Patchy rain nearby
High 67° Low 50°
Chance of precipitation: 80%
Fri, Aug 28 Friday
Patchy rain nearby
High 50° Low 42°
Chance of precipitation: 91%
Sat, Aug 29 Saturday
Mist
High 59° Low 39°
Chance of precipitation: 20%
Sun, Aug 30 Sunday
Sunny
High 65° Low 42°
Chance of precipitation: 5%
Mon, Aug 31 Monday
Sunny
High 69° Low 46°
Chance of precipitation: 5%
Tue, Sep 1 Tuesday
Sunny
High 74° Low 51°
Chance of precipitation: 4%
Wed, Sep 2 Wednesday
Overcast
High 75° Low 50°
Chance of precipitation: 40%
Thu, Sep 3 Thursday
Sunny
High 68° Low 49°
Chance of precipitation: 25%
Fri, Sep 4 Friday
Overcast
High 68° Low 50°
Chance of precipitation: 19%
Sat, Sep 5 Saturday
Sunny
High 57° Low 43°
Chance of precipitation: 81%
Sun, Sep 6 Sunday
Overcast
High 60° Low 41°
Chance of precipitation: 9%
Mon, Sep 7 Monday
Overcast
High 62° Low 48°
Chance of precipitation: 15%
Tue, Sep 8 Tuesday
Overcast
High 58° Low 40°
Chance of precipitation: 85%
Wed, Sep 9 Wednesday
Sunny
High 66° Low 46°
Chance of precipitation: 36%

About the weather in Ulaanbaatar

Cold is the baseline in Ulaanbaatar, not the exception. Night-time lows sit at or below freezing in 7 months of the year, and the warmest month, July, still only averages 76°F (25°C) by day. January runs to -10°F (-24°C) after dark.

Ulaanbaatar weather: quick facts

  • Hottest month: July - highs near 76°F (25°C)
  • Coldest month: January - highs near 10°F (-12°C)
  • Decade extremes (2015-2024): 100°F (38°C) high · -42°F (-41°C) low
  • Wettest month: August (12 rainy days) · Sunniest: June (12.1 h sun/day)
  • Climate type: humid continental
  • Annual swing: 37°C between the average warmest and coolest month · day to night: 12°C
  • Snow: about 15 days a year
  • Months with freezing average lows: 7
  • Average humidity: 58%

Temperatures through the year

January sits at the other end of the year: 10°F (-12°C) by day, -10°F (-24°C) at night. At its warmest, in July, Ulaanbaatar runs to 76°F (25°C) in the afternoon and back to 56°F (13°C) by dawn. Relative humidity averages 58% across the year, drier than about 88% of the cities we track.

Rain, sun and snow

Days and nights are about 12°C apart on average - wider than roughly 87% of the cities we track. 7 months average under 20 mm of rain, the longest unbroken stretch running October through April. The wettest month is August (3.5 inches (90 mm) across 12 days) and the driest January. The gridded 2015-2024 daily record for this location tops out at 100°F (38°C) and bottoms at -42°F (-41°C) - decade extremes, not all-time station records.

Season by season

Spring (March through May)

Spring in Ulaanbaatar is brisk and cold, with daytime highs averaging 49°F (10°C) and nights around 26°F (-4°C); rain comes on about 13 days over the three months, plus about 7 snowy days. Daylight is generous - around 11.3 hours of sun a day.

Summer (June through August)

Through summer, Ulaanbaatar settles into easy warmth: 73°F (23°C) by day, 52°F (11°C) after dark, and rain falls on around 33 of the 90 days. Daylight is generous - around 11.5 hours of sun a day.

Fall (September through November)

Through fall, Ulaanbaatar is brisk and cold: 43°F (6°C) by day, 24°F (-4°C) after dark, and rain comes on about 15 days over the three months, plus about 6 snowy days.

Winter (December through February)

Winter in Ulaanbaatar runs to hard cold, with daytime highs averaging 13°F (-11°C) and nights around -7°F (-22°C); precipitation is sparse, near 8 mm (0.3 in) for the season. Wind sharpens cold like this considerably; pair the forecast winds with the wind speed converter to judge exposed conditions.

Average temperatures in Ulaanbaatar by month

Monthly averages for Ulaanbaatar based on 2015–2024 weather data.
MonthHighLow Rain daysPrecipitation SunshineHumidity
January 10° -10° 1 0.1 in 8.0 h/day 70%
February 18° -4° 1 0.1 in 9.4 h/day 66%
March 36° 14° 2 0.3 in 10.7 h/day 46%
April 49° 27° 5 0.7 in 11.2 h/day 41%
May 62° 36° 6 1.1 in 12.0 h/day 42%
June 72° 49° 9 2.1 in 12.1 h/day 53%
July 76° 56° 12 3.4 in 11.2 h/day 62%
August 71° 51° 12 3.5 in 11.1 h/day 68%
September 61° 40° 8 1.6 in 9.8 h/day 63%
October 44° 26° 4 0.5 in 9.0 h/day 55%
November 25° 4 0.4 in 7.8 h/day 60%
December 11° -6° 1 0.1 in 7.4 h/day 68%

Explore Ulaanbaatar's full climate guide →

Common questions

What is the best month to go to Ulaanbaatar?
May to June and August to September is the sweet spot for Ulaanbaatar - these are the warmest and brightest weeks of the year. Expect 67°F (19°C) in the afternoon and around 9 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in May.
When does Ulaanbaatar drop below freezing?
Average overnight lows sit at or below 0°C in 7 months of the year, October through April.
Which month is wettest in Ulaanbaatar?
August, at 3.5 inches (90 mm) over about 12 days. January is the driest month, at 2 mm (0.1 in).
What is the hottest month in Ulaanbaatar?
July, averaging 76°F (25°C) by day and 56°F (13°C) overnight. The hottest single day in our 2015-2024 record for this location reached 100°F (38°C).
Does it snow in Ulaanbaatar?
Yes - about 15 days a year carry measurable snowfall, concentrated February through May.
Which month is coolest in Ulaanbaatar?
January, with highs of 10°F (-12°C) and lows near -10°F (-24°C). The coldest day in the 2015-2024 record fell to -42°F (-41°C).