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Улан-Батор in May: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Улан-Батор in May will be like? Take a look at our weather guide for Улан-Батор, based on historical data.
Check flight prices to Улан-Батор on Avionero:
May

Weather in Улан-Батор in May 2026

OK Weather
Mild
☁️
Cloudy
If you plan to visit Улан-Батор in May, the weather is typically alright, with an average high temperature of +63°F during the day and approximately 6 sunny days. Expect some rainy, though, as there are typically 11 rainy days in the month and around 25 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • May is usually the driest month of the year in Улан-Батор

Average weather

☀️
+63°F
Avg. max. temperature
+10°F
Min.
+91°F
Max.
25 mm
Total precipitation
48%
Avg. humidity
3 m/s
Avg. wind
6 ☀️
Sunny Days
12 ⛅️
Cloudy
11 🌦
Rainy
Our opinion: Улан-Батор has OK weather in May.

Average temperature in Улан-Батор in May

Here are the expected maximum, average and minimum temperatures in Улан-Батор for May based on the historical data.
Last Year
Historical Data

Going from a maximum of +73°F during the day to a minimum of +28°F during the night, the temperature in May averages around +59°F.

The average maximum temperature goes down 28% by the end of the month, compared with the beginning of the month, from +72°F to +59°F.

Is Улан-Батор warm or cold in May?

Улан-Батор is typically mild in May.

Maximum temperatures go up compared to the previous month from +48°F to +63°F. The minimum temperature also goes up from +25°F to +39°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how May is compared to other months in Улан-Батор:

Climate in Улан-Батор in May

Улан-Батор weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+48°F+63°F+72°F
Min. temperature
-11°F+10°F+28°F
Max. temperature
+84°F+91°F+99°F
Rainfall
8 mm25 mm55 mm
Wind
3 m/s3 m/s2 m/s
Humidity
49%48%56%
Air pressure
1013 HPa1010 HPa1007 HPa
Sunny days
864
Cloudy days
12128
Rainy days
41115
Snowy days
620

May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +48°F to +63°F during the day. Prepare for more rain. Average rainfall goes from 8 mm to 25 mm. It feels drier, as humidity decreases from 49% to 48%. The average wind speed doesn’t change much during May, staying around 3 m/s. The days becoming less sunny, going from 8 sunny days in April to 6 in May.

But maybe it is worth considering traveling in June as the weather gets better.

Wind

Wind speed in Улан-Батор in May based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Улан-Батор is gradually decreasing during May, going from 3 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Улан-Батор based on historical data.
Last Year
Historical Data
Typically, there is a 29% chance of rain on an average day in May, with total rainfall of approximately 35 mm. The maximum amount of rainfall per day is around 7 mm, which is considered light rain. On average, there are about 9 rainy days during May, so prepare to bring an umbrella.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Улан-Батор wettest month is August, where a typical day has a 52% chance of precipitation and 74 mm of rainfall per day. January, on the other hand, is the driest month with a mere 0% chance of precipitation and 0 mm of rainfall per day.

Snow

Amount of snow in mm during May in Улан-Батор based on historical data.
Last Year
Historical Data
Typically, there is a 0% chance of snow on an average day in May, with a total monthly snowfall of approximately 2 mm.

Here’s how May is compared with other months in the amount of snow, total mm:

How was the weather last May in Улан-Батор?

This is the weather in Улан-Батор in May 2024:
1 May
☁️
+71°F
2 May
☁️
+48°F
3 May
☁️
+51°F
4 May
☁️
+50°F
5 May
☁️
+49°F
6 May
☁️
+56°F
7 May
☁️
+65°F
8 May
☁️
+67°F
9 May
☁️
+67°F
10 May
☁️
+64°F
11 May
☁️
+56°F
12 May
☁️
+63°F
13 May
🌧️
+67°F
14 May
☁️
+62°F
15 May
☁️
+68°F
16 May
☀️
+50°F
17 May
☁️
+60°F
18 May
☁️
+66°F
19 May
☁️
+44°F
20 May
☁️
+40°F
21 May
☁️
+55°F
22 May
☁️
+71°F
23 May
☁️
+71°F
24 May
☁️
+64°F
25 May
☁️
+50°F
26 May
☁️
+61°F
27 May
🌧️
+59°F
28 May
☀️
+65°F
29 May
☁️
+73°F
30 May
🌧️
+60°F
31 May
🌧️
+59°F
In May 2024 Улан-Батор had 2 sunny days, 25 cloudy days, and 4 rainy days. The average maximum temperature was +59°F, with an absolute maximum of +73°F and a minimum of +39°F. The average humidity was 57%, with a maximum of 100% and a minimum of 19%. The average wind speed was 3 m/s, with a maximum of 16 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change Over the Years

This is how Улан-Батор climate has changed over the last 43 years.

The climate in Улан-Батор in May has not changed that much over the last 43 years.

The average temperature was the lowest in 1985 (+39°F) and the highest in 2007 (+48°F). The driest year was 2017 with only 192 mm of rainfall, and the wettest year was 1984 with 432 mm.

FAQ

Frequently asked questions about the weather in Улан-Батор in May:

Is May a good time to visit Улан-Батор?

It’s always a good time to visit Улан-Батор, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Улан-Батор in May?

May has mild temperatures in Улан-Батор. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Улан-Батор rainy in May?

Улан-Батор is usually dry in May. Plan your packing around outdoor activities and exploring.

Is it sunny in Улан-Батор in May?

Usually, it’s not very sunny in Улан-Батор in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Monthly weather in Улан-Батор

Source of the data

For this page, we’ve looked at the typical weather in Улан-Батор, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.