Stay in a Mongolian Ger
Discover the magic of Mongolia, from the Gobi Desert to Khövsgöl Lake, and experience traditional nomadic life in a Ger under starlit skies.
May in Ulaanbaatar brings moderate temperatures, with highs of 16°C (61°F) and nights dropping to 1°C (34°F). Expect some rainfall, with around 38 mm (1.5 in) typical for the month.
If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for Ulaanbaatar.
Pick a month to see the average temperature, rainfall and sunshine in Ulaanbaatar - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Ulaanbaatar typically rise from around 14°C (57°F) at the start of May to approximately 19°C (66°F) by the end. Nights are cold, with lows typically ranging from -2°C (28°F) to 6°C (43°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Ulaanbaatar spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Ulaanbaatar from 1993 through 2026.
Find out more about the weather in Mongolia and which places have the best travel conditions in this month. See all of Mongolia in May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Ulaanbaatar climate overview or explore weather in Mongolia.
Where to go in May - average daytime high across popular destinations.
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Stay in a Mongolian Ger
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