August 18 is generally a great time to visit Ulaanbaatar. While there is a slight chance of rain (34%), showers are usually brief. Expect comfortable 21°C weather.
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Essential Travel Info for Ulaanbaatar
Currency
MNT
₮ Mongolian tögrög
Language
Mongolian
Driving
Right side
Connect
On Peace Avenue at the southwest corner ...
Safety
High Safety
GPI: 1.775
Ulaanbaatar Weather Forecast for August 18
"Mild & Comfortable. Expect average highs of 21.3°C. 34% chance of rain."
What to Wear in Ulaanbaatar in August
Based on historical data for August 18, Ulaanbaatar typically experiences temperatures between 10.1°C and 21.3°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 34% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Ulaanbaatar
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
21.3°C
Daytime Peak
Average Low
10.1°C
Nighttime Low
Feels Like
21.5°C
☀️ Feels accurate
Rain Chance
34%
Avg 1.9mm if it rains
Cloud Cover
60%
Overcast
Pressure
1010.2 hPa
Low volatility
Ulaanbaatar Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 85% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 20:00
Type I-II
🔴 20 min to burn
Type III-IV
🟡 30 min to burn
Type V-VI
🟢 50 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
14.7°C
Pleasant
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Mongolia
Flight Traffic
N/A
0/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
N/A
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Ulaanbaatar
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:52
☀️ Noon
12:57
🌇 Sunset
20:03
⏱️ Daylight
14h 11m
Wind Speed
13.8 km/h
Gentle breeze
Sunshine
10.4 hrs
Direct Sun (Cloud-free)
Humidity
66%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Ulaanbaatar
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Ulaanbaatar
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Ulaanbaatar on August 18 averages 21.3°C with a 34% precipitation probability. Wedding/Outdoor Event Score: 93/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Ulaanbaatar Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
August 13
22.4°C • 19% rain
Score
99
August 12
22.4°C • 22% rain
Score
98
August 14
22.4°C • 21% rain
Score
98
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 18) in other destinations
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📍 Is Ulaanbaatar Worth Visiting on August 18?
Planning a trip to Ulaanbaatar on August 18? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 21.3°C with a 34% historical precipitation risk.
💉 Health Advisory: 8 vaccinations are recommended for Mongolia, including COVID-19.
📊 Historical Extremes: The hottest August 18 recorded in the last 30 years saw temperatures hit 25.5°C in 2018, while the coldest dropped to 7.1°C in 2019.