Ulaanbaatar Weather in August
August in Ulaanbaatar brings pleasant temperatures, with daytime highs of 22°C (72°F) and nights around 9°C (48°F). It's also the wettest month of the year, so an umbrella is a must.
Rainfall in Ulaanbaatar in August
As the month with the highest rainfall, make sure to have an umbrella to manage the showers. Past climate data indicates that roughly 16 days will see rain, totalling around 72 mm (2.8 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Ulaanbaatar in August
If you're visiting Ulaanbaatar in August, expect perfect temperatures with highs of 22°C (72°F) and overnight lows of 9°C (48°F). The summer season is characteristic of August. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows around 9°C (48°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Ulaanbaatar in August
With approximately 259 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mongolia, check out our Ulaanbaatar's climate page.
Ulaanbaatar Temperature in August
Min Temperature
9°C (48°F)
Max Temperature
22°C (72°F)
Chance of Rain
55%
Precipitation
72 mm (2.8 in)
Rainy days
16 days
Humidity
64%
Sunshine
259 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ulaanbaatar typically drop from around 24°C (75°F) at the start of August to approximately 20°C (68°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 13°C (55°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Ulaanbaatar in August
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.
Ulaanbaatar historical weather extremes in August
The extremes listed below come from historical weather data collected in Ulaanbaatar from 1993 through 2025.
- On August 3, 2016, temperatures climbed to 37°C (99°F), marking the warmest August day on record.
- The coldest August day was on August 23, 2017, with a maximum of 11°C (52°F).
- Nighttime temperatures dropped to -2°C (28°F) on August 21, 2012, marking the coldest August night on record.
Best Places in Mongolia in August
Find out more about the weather in Mongolia and which places have the best travel conditions in this month. See all of Mongolia in August →
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What to Wear in Ulaanbaatar in August
Pleasant temperatures in August 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. Rain gear is recommended, you can expect wet weather on multiple days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Ulaanbaatar in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mongolia, check out our Ulaanbaatar's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ulaanbaatar climate overview or explore weather in Mongolia.
