The best times to visit Ulaanbaatar for ideal weather are
May 28th to September 9th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Ulaanbaatar Travel Guide
Weather in Ulaanbaatar
Average temperatures in Ulaanbaatar vary an incredible amount. Considering humidity, temperatures feel cold for most of the year with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 41st percentile for pleasant weather — compared to tourist destinations worldwide. 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 81.7°F (27.6°C) with temperatures rarely dropping below 53.5°F (11.9°C) at night.
Ulaanbaatar Temperatures (Fahrenheit)
Ulaanbaatar Temperatures (Celsius)
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)
Ulaanbaatar Perceived Temperature (C)
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.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Ulaanbaatar are January, December, and then February. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid January. For example, on the week of January 8th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early July with an average of 2 days of significant precipitation the week of July 2nd.
When can you find snow in Ulaanbaatar? Weather stations report large amounts of snow likely to be deepest around April, especially close to late April. The best time to ski (if at all) in Ulaanbaatar is often around around April 23rd when fresh powder is deepest. 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.
The graph below shows the % chance of rainy and snowy days in Ulaanbaatar.
Snow on the Ground
The graph below shows the average snow on the ground in Ulaanbaatar (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Ulaanbaatar has some humid months, and dry months in the opposite season. The least humid month is May (29.1% relative humidity), and the most humid month is December (60.2%).
Wind in Ulaanbaatar is usually calm. The windiest month is May, followed by June and April. May’s average wind speed of around 8.6 knots (9.9 MPH or 15.9 KPH) is considered “a 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 19.5 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Ulaanbaatar.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||2.6||Barely noticeable||7.7||Gentle breeze|
|Feb||3.7||Barely noticeable||10.2||Gentle breeze|
|Mar||5.3||Light breeze||13||Gentle breeze|
|Apr||7.3||Gentle breeze||16.5||Significant breeze|
|May||8.6||Gentle breeze||18.5||Gentle breeze|
|Jun||7.5||Gentle breeze||17||Strong breeze|
|Jul||6.2||Light breeze||15.3||Gentle breeze|
|Aug||5.8||Light breeze||13.9||Significant breeze|
|Sep||5.9||Light breeze||14||Gentle breeze|
|Oct||5||Light breeze||12.6||Significant breeze|
|Nov||3.7||Barely noticeable||10||Gentle breeze|
|Dec||2.9||Barely noticeable||8.1||Gentle breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Ulaanbaatar?
Our best data indicates this area is somewhat safe. As of Jan 18, 2018 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
The Busiest and Least Crowded Months
The busiest month for tourism in Ulaanbaatar, Mongolia is October, followed by August and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Ulaanbaatar in February. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Ulaanbaatar Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 69.3°F (20.7°C) and 20.9°F (-6.2°C) with far warmer temperatures in the later months. Rain is rare with 1 to 3 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 5 to 8 days of precipitation per month. June – August is the busiest season for tourism in Ulaanbaatar, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 68.3°F (20.2°C) and 15.4°F (-9.2°C), which will feel very chilly given the humidity and wind. It rains or snows a normal amount: 0 to 2 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower 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 20.9°F (-6.2°C) and 1.4°F (-17°C). On average, it rains or snows a insignificant amount: consistently 0 times per month. These times of year are the slowest with tourists.