Our verdict
The best time to visit Ulaanbaatar is May-July
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!
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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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:
| Season | Months |
|---|---|
| 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.
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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
of pure sunshine
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.
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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
of pure sunshine
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.
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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
of pure sunshine
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.
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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
of pure sunshine
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.
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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
of pure sunshine
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.
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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
of pure sunshine
of showers or rain
What to pack: If you’re heading to Ulaanbaatar in June, make sure you pack a warm jacket or coat.
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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
of pure sunshine
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.
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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
of pure sunshine
of showers or rain
What to pack: If you’re heading to Ulaanbaatar in August, make sure you pack a warm jacket or coat.
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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
of pure sunshine
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
of pure sunshine
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.
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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
of pure sunshine
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.
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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
of pure sunshine
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.
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