Ulaanbaatar
Mongolia
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Ulaanbaatar, Mongolia

The valley city of Ulaanbaatar in Mongolia, viewed from above, with the distant view of the mountain ranges
The valley city of Ulaanbaatar in Mongolia, viewed from above, with the distant view of the mountain ranges
May, the last month of the spring, in Ulaanbaatar, is a comfortable month, with temperature in the range of an average high of 17.8°C (64°F) and an average low of 0°C (32°F).

Temperature

In May, the average high-temperature significantly increases, from a frosty 9.7°C (49.5°F) in April, to an enjoyable 17.8°C (64°F). In May, the average low-temperature is 0°C (32°F).

Humidity

May is the least humid month in Ulaanbaatar, with an average relative humidity of 46%.

Rainfall

In Ulaanbaatar, Mongolia, during May, the rain falls for 7 days and regularly aggregates up to 21mm (0.83") of precipitation. In Ulaanbaatar, during the entire year, the rain falls for 62.7 days and collects up to 267mm (10.51") of precipitation.

Snowfall

Months with snowfall in Ulaanbaatar are January through December. In May, snow falls for 3 days. In Ulaanbaatar, Mongolia, during the entire year, snow falls for 58.9 days.

Daylight

In Ulaanbaatar, the average length of the day in May is 15.2h.

Sunshine

The month with the most sunshine is May, with an average of 9.7h of sunshine.

UV index

In Ulaanbaatar, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in May interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in Ulaanbaatar?

The average high-temperature, in May, in Ulaanbaatar, Mongolia, is 17.8°C (64°F), while the average low-temperature is 0°C (32°F).

What is the least humid month in Ulaanbaatar?

May is the least humid month in Ulaanbaatar, Mongolia, with an average relative humidity of 46%.

What is the average humidity in May in Ulaanbaatar?

In May, the average relative humidity in Ulaanbaatar, Mongolia, is 46%.

How many days does it rain in May in Ulaanbaatar?

In Ulaanbaatar, in May, during 7 rainfall days, 21mm (0.83") of precipitation is typically accumulated.

How many days does it snow in May in Ulaanbaatar?

In Ulaanbaatar, during May, snow falls for 3 days.

What is the average length of the day in May in Ulaanbaatar?

The average length of the day in May in Ulaanbaatar is 15.2h.

What month has the most sunshine in Ulaanbaatar?

The month with the most sunshine is May, with an average of 9.7h of sunshine.

How many hours of sunshine does Ulaanbaatar have in May?

In Ulaanbaatar, the average sunshine in May is 9.7h.

What is the UV index reading in May in Ulaanbaatar?

In Ulaanbaatar, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health threat from the exposure to the Sun's UV radiation.
Average temperature in May - Ulaanbaatar, Mongolia
  • Average high temperature in May: 17.8°C

The warmest month (with the highest average high temperature) is July (24.5°C).
The month with the lowest average high temperature is January (-15.6°C).

  • Average low temperature in May: 0°C

Months with the highest average low temperature are January, February, March, April, May, June, July, August, September, October, November and December (0°C).
Coldest months (with the lowest average low temperature) are January, February, March, April, May, June, July, August, September, October, November and December (0°C).

Average humidity in May - Ulaanbaatar, Mongolia
  • Average humidity in May: 46%

Months with the highest relative humidity are January and December (78%).
The month with the lowest relative humidity is May (46%).

Average rainfall in May - Ulaanbaatar, Mongolia
  • Average rainfall in May: 21mm

The wettest month (with the highest rainfall) is August (70mm).
The driest month (with the lowest rainfall) is January (2mm).

Average rainfall days in May - Ulaanbaatar, Mongolia
  • Average rainfall days in May: 7 days

The month with the highest number of rainy days is July (16 days).
The month with the lowest number of rainy days is February (0 days).

Average snowfall days in May - Ulaanbaatar, Mongolia
  • Average snowfall days in May: 3 days

The month with the highest number of snowfall days is December (10 days).
The month with the lowest number of snowfall days is July (0.2 days).

Average daylight in May / Average sunshine in May - Ulaanbaatar, Mongolia
  • Average daylight in May: 15.2h

The month with the longest days is June (Average daylight: 16h).
The month with shortest days is December (Average daylight: 8.5h).

  • Average sunshine in May: 9.7h

The month with most sunshine is May (Average sunshine: 9.7h).
The month with least sunshine is December (Average sunshine: 5h).

Average UV index in May - Ulaanbaatar, Mongolia
  • Average UV index in May: 6

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).