Ulaanbaatar Weather in April

As the temperature rises significantly, April marks the end of winter in Ulaanbaatar., Ulaanbaatar weather in April is only a bit cold during daytime; in some days around noon, it can be pleasantly warm. But with large day-night temperature difference, it turns chilly when night falls. The precipitation remains low, falling as light snow and rain. Sudden climate changes can be seen, including sudden temperature drops, strong winds and possible sandstorms.

Temperature: Rise Gradually with Sudden Drops

High temperature: mostly between 6 and 15 ℃ (43 - 59 ℉);
Low temperature: -7 to 3℃ (19 - 37℉) 

The daytime highs in early April usually keeps below 8 degrees Celsius (46 degrees Fahrenheit) and hovers around 12℃ (54℉) in late April, even reaching 20℃ (68℉) occasionally. From the data, we can see a rising trend and Ulaanbaatar climate in April gets warm step by step. So, snow cover in most places has melted away during this month, leaving some only on the mountain peaks.

However, strong wind hits Ulaanbaatar from time to time, making the temperature suddenly drop. It might reach force 5, so strong that visitor feel like being blown away when walking outside. Meanwhile, the high temperature plunges to below freezing and down jackets are needed.

Precipitation: Relatively Low

The precipitation of Ulaanbaatar in April is around 15 mm (0.59 in), distributed over 5 days. It may snow or rain, but lightly in most time. The snowflake melts soon after falling on the ground and accumulated snow hardly can be seen. Though heavy snowfall occurs, there exists only thin snow cover on the ground which melts in several days. It means that your travel plan will not be disrupted largely; while on the other hand, it implies that snow scenery is less magnificent and lasts only for a short time. 

Generally speaking, the weather of Ulaanbaatar in April remains quite dry. When there is a strong wind, it blows up dust on the drought and barren land, thus causing dusty days, even sandstorms.

Sunlight: Bright and Strong

Due to the unstable climate, there are less sunny days, no more than 10 days averagely and cloudy days account for the majority. Even though, Ulaanbaatar still receives 9 hours of sunlight per day on average in April. The sunlight becomes strong as the UV index reaches grade 5, which reminds you to wear sunglasses around noon. More luckily, even in cloudy days, the sky keeps azure with high visibility. 

With the dawn breaking at 05:49 - 06:42 and dusk falling at 19:34 - 20:14, April in Ulaanbaatar sees quite long daytime of 14 hours. However, though night falls late, many attractions still close at 17:00.

Averages for Ulaanbaatar Weather in April

High Temperature

10°C (50°F)

Low Temperature

-6°C (21°F)

Rainfall

15 mm

Sunrise

05:49 ~ 06:42

Sunset

19:34~ 20:14

Jan.Feb.Mar.Apr.May.Jun.Jul.Aug.Sep.Oct.Nov.Dec.

The times for sunrise and sunset are based on Ulaanbaatar.

Is April a Good Time to Visit Ulaanbaatar?

Not yet. The climate of Ulaanbaatar in April is changeable and there occurs sudden temperature drop, strong winds as well as sandstorms. The terrible weather condition increases the uncertainties of your trip. Moreover, the natural scenery in April is bleak and desolate. As it begins to thaw in Ulaanbaatar in April, snow scenery is unavailable. What you can see is only an expanse of bare grassland with withered yellow grass. A hint of green can be hardly seen and you may feel like walking in the desert instead of on the grassland.

However, if you have determined to visit Ulaanbaatar in April 2026, please read the following tips and make full preparation for you trip. 

Tips for Dressing in Ulaanbaatar in April

Upper body: Two layers of clothes are warm enough in April. For the inner layer, it is suggested to wear long-sleeved T-shirts, hoodies, blouses or knitwear. Then, choose from leather coats, 3-in-1 windbreakers, cotton coats and woolen coats for the outer layer. You had better prepare a down coat to deal with the possible temperature drops.

Lower body: Around noon when the temperature is relatively high with bright sunshine, you can wear jeans or sweatpants alone; while in the early morning and late evening, you need to put on long johns or change them into fleece-lined ones.

Shoes: Comfortable casual shoes with cotton socks are good matches for long-time outdoor activities. There are lots of choices like sneakers and hiking boots.

Others: You might need a pair of sunglasses at sunny noon to prevent the sunlight in April. Masks are also indispensable to help you prevent sand and dust. Besides, please prepare hats and scarves to resist strong winds and prevent heat loss.