The best times to visit Ulaanbaatar for ideal weather are

June 18th to August 12th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

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Ulaanbaatar Travel Guide

  • Safety
  • The busiest and least popular months
  • Overall travel experience by time of year
  • Weather in Ulaanbaatar

    Temperature

    Average temperatures in Ulaanbaatar vary drastically and are seasonally temperate. The area is in the top 85 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Ulaanbaatar, the hottest months are July, June, and then August. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 60°F (15.6°C) with temperatures rarely dropping below 39.3°F (4.1°C) at night.

    Ulaanbaatar Temperatures (Fahrenheit)

    Key
    High
    Average
    Low

    Ulaanbaatar Temperatures (Celsius)

    Key
    High
    Average
    Low

    “Feels-Like” Temperatures

    The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

    Ulaanbaatar Perceived Temperature (F)

    Key
    High
    Average
    Low

    Ulaanbaatar Perceived Temperature (C)

    Key
    High
    Average
    Low

     

    Average Ulaanbaatar Temperatures by Month

    Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

    Show Fahrenheit

    Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
    Jan 2.9 -13.6 -27.1
    Feb 12.3 -5.4 -22
    Mar 31.2 16 -1.2
    Apr 51.3 37.1 19.7
    May 63.2 49.5 32.7
    Jun 73.9 61.9 46.9
    Jul 77.6 65.7 51.8
    Aug 74.4 61.2 46.4
    Sep 64.5 49 32.3
    Oct 47.1 31.9 16.7
    Nov 24 9.1 -5.2
    Dec 5.9 -8.7 -21.1

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan -16.2 -25.3 -32.8
    Feb -10.9 -20.8 -30
    Mar -0.4 -8.9 -18.4
    Apr 10.7 2.8 -6.8
    May 17.3 9.7 0.4
    Jun 23.3 16.6 8.3
    Jul 25.3 18.7 11
    Aug 23.6 16.2 8
    Sep 18.1 9.4 0.2
    Oct 8.4 -0.1 -8.5
    Nov -4.4 -12.7 -20.7
    Dec -14.5 -22.6 -29.5

     

    Precipitation (Rain or Snow)

    If dry weather is what you’re after, the months with the lowest chance of precipitation in Ulaanbaatar are July, August, and then June. The lowest chance of rain or snow occurs around late October to early November. For example, on the week of October 29th there are only 0.3 days of precipitation on average. By contrast, it’s most likely to rain or snow in mid-July with an average of 3.1 days with significant precipitation the week of July 16th.

    When can you find snow in Ulaanbaatar? Weather stations report moderate or seasonal snow likely to be deepest around April, especially close to late April. Powder (new snow) is most often falls around April 23rd. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

    Chance of Precipitation

    The graph below shows the % chance of rainy and snowy days in Ulaanbaatar.

    Key
    Days with precipitation

    Snow on the Ground

    The graph below shows the average snow on the ground in Ulaanbaatar (in).

    Key
    Snow depth

    Average Rain and Snow by Month

    Show Inches

    Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
    Jan 5.7 2 0
    Feb 8.6 2.2 0
    Mar 8.6 1.9 0.01
    Apr 10 3.4 0.01
    May 21.4 1.5 0.02
    Jun 31.4 0 0.07
    Jul 40 0 0.1
    Aug 32.9 0 0.07
    Sep 14.3 1.5 0.02
    Oct 11.4 1.1 0.01
    Nov 12.9 1.6 0.01
    Dec 14.3 2 0

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 5.7 5.1 0
    Feb 8.6 5.6 0
    Mar 8.6 4.8 0.03
    Apr 10 8.6 0.03
    May 21.4 3.8 0.05
    Jun 31.4 0 0.18
    Jul 40 0 0.25
    Aug 32.9 0 0.18
    Sep 14.3 3.8 0.05
    Oct 11.4 2.8 0.03
    Nov 12.9 4.1 0.03
    Dec 14.3 5.1 0

     

    Humidity and Wind

    Ulaanbaatar has below average humidity compared to most tourist destinations. The least humid month is April (29.4% relative humidity), and the most humid month is December (59.7%).

    Wind in Ulaanbaatar is usually moderate. The windiest month is May, followed by June and April. May’s average wind speed of around 8.7 knots (10 MPH or 16.1 KPH) is considered “gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early-to-mid-May where average top sustained speeds reach 18.4 knots, which is considered a fresh breeze.

    Relative Humidity (%)

    The graph below shows the average % humidity by month in Ulaanbaatar.

    Key
    Avg. Relative Humidity

    Wind

    The graph below shows wind speed (max and average) in knots.

    Key
    Max Sustained Wind
    Average Daily Wind

    Average Wind Speeds

    Show Wind Speeds

    All wind speeds are in knots.

    Month Avg. Wind Meaning (Beaufort) Avg. Maximum Sustained Wind Meaning (Beufort)
    Jan 2.6 light air 6.9 a light breeze
    Feb 3.7 light air 9.2 a gentle breeze
    Mar 5.4 a light breeze 12.5 a light breeze
    Apr 7.4 a gentle breeze 15.5 a moderate breeze
    May 8.7 a gentle breeze 17.3 a light breeze
    Jun 7.5 a gentle breeze 15.6 a moderate breeze
    Jul 6.3 a light breeze 13.9 a light breeze
    Aug 5.9 a light breeze 12.6 a moderate breeze
    Sep 6 a light breeze 13 a light breeze
    Oct 5.2 a light breeze 11.8 a moderate breeze
    Nov 3.8 light air 9.1 a light breeze
    Dec 3 light air 7.3 a gentle breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 55.8
    Feb 53.2
    Mar 45.6
    Apr 29.4
    May 29.4
    Jun 38.6
    Jul 48.8
    Aug 49.8
    Sep 40
    Oct 47.1
    Nov 57.7
    Dec 59.7

     

    Is it Safe to Travel to Ulaanbaatar?

    As of 5/2/2017 there are travel warnings for Mongolia; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories.
     

    Overall Ulaanbaatar Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel very cold. Highs range from 51.4°F (10.8°C) and 14.7°F (-9.6°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 7 days of precipitation per month. Spring is slow/unreported for tourism, which makes it a good time for those looking for deals.

    Summer (June through August)

    The middle-year months have slightly cold weather with high temperatures that are comfortable. These months see moderate precipitation with 9 to 12 days of precipitation per month. June – August is slow/unreported season for tourism in Ulaanbaatar, so lodging and other accommodations may cost as much as usual.

    Fall (September through November)

    Fall daily highs range from 51.3°F (10.7°C) and 10.6°F (-11.9°C), which will feel very chilly given the humidity and wind. It rains or snows a fair amount: approximately 4 days per month. Tourism is slow/unreported during these months due to the weather, so hotels may be normally priced.

    Winter (December through February)

    Weather is far too cold this time of year in Ulaanbaatar to be enjoyable for warm weather travelers. The average high during this season is between 12.4°F (-10.9°C) and 0.4°F (-17.6°C). On average, it rains or snows a normal amount: 2 to 4 times per month. These times of year are slow/unreported with tourists.

     

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