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Best time to visit Ulaanbaatar, Mongolia

Our verdict

The best time to visit Ulaanbaatar is May-July

While Ulaanbaatar is a popular destination to visit all year round, May-July is the ideal time to go due to a number of factors such as the climate, cost of travel and accommodation, as well as avoiding peak holiday periods.

During the warmer months, temperatures in Ulaanbaatar can rise to a maximum of 24℃ (74℉). In the winter months, it can get down to as low as -35℃ (-30℉) at night.

If you’re keen to work on your tan in Ulaanbaatar, you’re most likely get the longest days between sun-up and sun-down around July. The wet season in Ulaanbaatar usually falls during the months surrounding July each year. It’s not uncommon to get some decent rainfall or light showers during this time, but on some days the weather tends to be fine for a majority of the day, with only a few drops of rain falling from a passing shower.

Learn more about when to travel to Ulaanbaatar, the monthly weather breakdown, FAQs and much more below. Once you’ve decided when you want to go, use our handy tools to find the best prices to suit your budget on flights, transport/transfers, places to stay, and loads more!

Warmest month

July

Least rainfall

January

Most daylight

July

Ulaanbaatar seasons

Before you continue, it’s important to know when the seasons are in Ulaanbaatar as they might be different to yours depending on where in the world you’re travelling from. Ulaanbaatar is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in Ulaanbaatar

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Ulaanbaatar for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

Ulaanbaatar climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Ulaanbaatar for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Ulaanbaatar in January

  • Average temperature: -22℃ (-8℉)
  • Average high temperature: -17℃ (2℉)
  • Average low temperature: -27℃ (-16℉)
  • Average humidity: 87%
  • Average sunny days: 27 days
  • Average rainfall: 1mm (0") over 2 days
  • Average snow days: 7 days
27 days
of pure sunshine
2 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Ulaanbaatar in February

  • Average temperature: -20℃ (-4℉)
  • Average high temperature: -14℃ (8℉)
  • Average low temperature: -25℃ (-13℉)
  • Average humidity: 85%
  • Average sunny days: 22 days
  • Average rainfall: 4mm (0") over 3 days
  • Average snow days: 7 days
22 days
of pure sunshine
3 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Ulaanbaatar in March

  • Average temperature: -10℃ (13℉)
  • Average high temperature: -5℃ (23℉)
  • Average low temperature: -16℃ (4℉)
  • Average humidity: 75%
  • Average sunny days: 22 days
  • Average rainfall: 7mm (0") over 6 days
  • Average snow days: 8 days
22 days
of pure sunshine
6 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Ulaanbaatar in April

  • Average temperature: 2℃ (35℉)
  • Average high temperature: 6℃ (43℉)
  • Average low temperature: -3℃ (27℉)
  • Average humidity: 50%
  • Average sunny days: 19 days
  • Average rainfall: 10mm (0") over 6 days
  • Average snow days: 6 days
19 days
of pure sunshine
6 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Ulaanbaatar in May

  • Average temperature: 9℃ (47℉)
  • Average high temperature: 13℃ (56℉)
  • Average low temperature: 3℃ (38℉)
  • Average humidity: 45%
  • Average sunny days: 20 days
  • Average rainfall: 23mm (1") over 8 days
  • Average snow days: 4 days
20 days
of pure sunshine
8 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in May, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Ulaanbaatar in June

  • Average temperature: 15℃ (59℉)
  • Average high temperature: 20℃ (67℉)
  • Average low temperature: 10℃ (50℉)
  • Average humidity: 50%
  • Average sunny days: 13 days
  • Average rainfall: 37mm (1") over 13 days
13 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in June, make sure you pack a warm jacket or coat.


Ulaanbaatar in July

  • Average temperature: 17℃ (63℉)
  • Average high temperature: 22℃ (71℉)
  • Average low temperature: 12℃ (54℉)
  • Average humidity: 57%
  • Average sunny days: 12 days
  • Average rainfall: 47mm (2") over 15 days
12 days
of pure sunshine
15 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in July, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.


Ulaanbaatar in August

  • Average temperature: 15℃ (58℉)
  • Average high temperature: 20℃ (67℉)
  • Average low temperature: 10℃ (50℉)
  • Average humidity: 61%
  • Average sunny days: 14 days
  • Average rainfall: 41mm (2") over 13 days
14 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in August, make sure you pack a warm jacket or coat.


Ulaanbaatar in September

  • Average temperature: 8℃ (47℉)
  • Average high temperature: 13℃ (55℉)
  • Average low temperature: 4℃ (39℉)
  • Average humidity: 57%
  • Average sunny days: 18 days
  • Average rainfall: 16mm (1") over 8 days
  • Average snow days: 2 days
18 days
of pure sunshine
8 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in September, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.

Ulaanbaatar in October

  • Average temperature: -1℃ (31℉)
  • Average high temperature: 3℃ (38℉)
  • Average low temperature: -4℃ (24℉)
  • Average humidity: 61%
  • Average sunny days: 24 days
  • Average rainfall: 9mm (0") over 4 days
  • Average snow days: 6 days
24 days
of pure sunshine
4 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in October, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Ulaanbaatar in November

  • Average temperature: -12℃ (10℉)
  • Average high temperature: -8℃ (18℉)
  • Average low temperature: -16℃ (3℉)
  • Average humidity: 75%
  • Average sunny days: 23 days
  • Average rainfall: 6mm (0") over 3 days
  • Average snow days: 8 days
23 days
of pure sunshine
3 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Ulaanbaatar in December

  • Average temperature: -20℃ (-4℉)
  • Average high temperature: -15℃ (5℉)
  • Average low temperature: -24℃ (-11℉)
  • Average humidity: 87%
  • Average sunny days: 25 days
  • Average rainfall: 2mm (0") over 3 days
  • Average snow days: 8 days
25 days
of pure sunshine
3 days
of showers or rain

What to pack: If you’re heading to Ulaanbaatar in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Top FAQs

The hottest month of the year in Ulaanbaatar is usually July, where temperatures tend to rise to around 22℃ (71℉) in the middle of the day or early afternoon.
The month with the least amount of rain in Ulaanbaatar is generally around January. The dry season often coincides with cooler weather, so you should check the temperatures in January first to make sure it’s still a good time to go.
The rainiest time of year in Ulaanbaatar is generally around July, although the wetter season can sometimes extend a few months either side of July too.
If you want to get the most out of your time visiting Ulaanbaatar, or if you're just afraid of the dark, the days in July are usually the longest between sunrise and sunset.

Ulaanbaatar map