Mongolia Ulaanbaatar Weather in August — Climate Guide
August in Ulaanbaatar is high
Ulaanbaatar Weather in August — Quick Answer
As of 2026- Avg temp
- 22° / 11°
- Rainfall
- 70mm · 13 days
- Crowds
- Busy
As of 2026, Ulaanbaatar in August averages a high of 22°C and low of 11°C with 70mm of rain over about 13 days. Warm late summer — days around 22°C, nights near 11°C. Summer clothing with an evening layer and a reliable rain jacket, since August sees the most rain of the year. Sunscreen and sunglasses for the high-altitude sun.
August is high for Ulaanbaatar.
August is one of the best all-round months for Mongolia. The steppe is at its lushest and greenest after the summer rains, daytime temperatures sit around a comfortable 22°C, and the Naadam crush has passed, so the countryside feels a touch calmer than July.
It is, statistically, the wettest month, but the rain typically comes as short afternoon thunderstorms rather than persistent drizzle, and mornings are often clear. Bring a proper rain jacket and you'll rarely lose a day.
Travel score
Ulaanbaatar August Weather Stats
Avg High
22°C
Avg Low
11°C
Rainy Days
13
70mm total
Sunshine
9h
Daily avg
Humidity
58%
comfortable
UV Index
7
High
Wind
10 km/h
Gusts 28
Crowds
Busy
At attractions
August Sunrise & Sunset
Air Quality
PM2.5
14 μg/m³
PM10
48 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
22°C
Nighttime
10°C
Humidity and wind affect how the actual temperature feels.
Wind
10 km/h
Max gust 28 km/h
Activities Recommended for August
August Travel Pros & Cons
Pros
- Lushest green steppe of the year
- Comfortable warmth (~22°C)
- Crowds ease after Naadam
- All countryside trips at their best
Cons
- Wettest month — frequent afternoon storms
- Still high-season prices
- Cool nights need a layer
- Roads can get muddy after heavy rain
August Events & Festivals
- Greenest, wettest peak — most rainfall of the year
- High season continues, crowds easing after Naadam
- Excellent steppe and countryside conditions
Ulaanbaatar in August — Full Picture
August is one of the best all-round months for Mongolia. The steppe is at its lushest and greenest after the summer rains, daytime temperatures sit around a comfortable 22°C, and the Naadam crush has passed, so the countryside feels a touch calmer than July.
It is, statistically, the wettest month, but the rain typically comes as short afternoon thunderstorms rather than persistent drizzle, and mornings are often clear. Bring a proper rain jacket and you'll rarely lose a day.
Ger stays in Terelj, horse trekking, Hustai's wild horses, and longer Gobi or Khövsgöl trips are all at their best. Prices stay in high-season territory but ease from the Naadam spike. For travelers who want green steppe and warm weather without July's festival crowds, August is an ideal choice.
What to Wear & What to Pack
Warm late summer — days around 22°C, nights near 11°C. Summer clothing with an evening layer and a reliable rain jacket, since August sees the most rain of the year. Sunscreen and sunglasses for the high-altitude sun.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
7.7°C
-5°C
4.3/mo
Summer (Jun·Jul·Aug)
Current22.3°C
10.7°C
11.3/mo
Autumn (Sep·Oct·Nov)
6.3°C
-5.7°C
4.7/mo
Winter (Dec·Jan·Feb)
-13.3°C
-23.7°C
2/mo
Ulaanbaatar Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| -16° | -26° | 2d·2mm | 5.5h | 70% | 1 | Quiet | Low season | |
| -11° | -22° | 2d·2mm | 7h | 68% | 2 | Quiet | Low season | |
| -1° | -13° | 3d·3mm | 8h | 55% | 3 | Quiet | Low season | |
| 8° | -4° | 4d·7mm | 8.5h | 45% | 4 | Quiet | Low season | |
| 16° | 2° | 6d·16mm | 9.5h | 45% | 6 | Moderate | Shoulder | |
| June (Best) | 21° | 8° | 9d·40mm | 10h | 50% | 7 | Busy | Peak |
| July (Best) | 24° | 13° | 12d·65mm | 9.5h | 55% | 8 | Very busy | Peak |
| August (Best) | 22° | 11° | 13d·70mm | 9h | 58% | 7 | Busy | Peak |
| 16° | 4° | 7d·23mm | 9h | 50% | 5 | Moderate | Shoulder | |
| 7° | -5° | 4d·6mm | 7.5h | 50% | 3 | Quiet | Low season | |
| -4° | -16° | 3d·4mm | 6h | 60% | 2 | Quiet | Low season | |
| -13° | -23° | 2d·2mm | 5h | 68% | 1 | Quiet | Low season |
View Other Months
Ulaanbaatar August Hotel Picks
Frequently Asked Questions
Is August a good time to visit Ulaanbaatar?
Ulaanbaatar in August is high. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Ulaanbaatar in August?
Ulaanbaatar August averages a high of 22°C and a low of 11°C.
Does it rain much in Ulaanbaatar in August?
Ulaanbaatar August averages 70mm of rainfall over about 13 rainy days.
What should I wear in Ulaanbaatar in August?
Warm late summer — days around 22°C, nights near 11°C. Summer clothing with an evening layer and a reliable rain jacket, since August sees the most rain of the year. Sunscreen and sunglasses for the high-altitude sun.
What time are sunrise and sunset in Ulaanbaatar in August?
Ulaanbaatar August sunrise is 05:45 and sunset is 19:50, with 14h 05min of daylight.
What's the air quality like in Ulaanbaatar in August?
Ulaanbaatar August air quality (AQI) averages 38, rated Good. PM2.5 averages 14μg/m³.
What activities are recommended in Ulaanbaatar in August?
In August, Ulaanbaatar is great for Terelj ger stay + horse trekking, Hustai National Park, Gobi Desert / Khövsgöl Lake trips.
Is August peak season in Ulaanbaatar?
Ulaanbaatar August crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Ulaanbaatar
View Other Months
Planning a August trip to Ulaanbaatar?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.