September 15 is generally a great time to visit Ulaanbaatar. While there is a slight chance of rain (18%), showers are usually brief. Expect comfortable 16°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 September 15
"Mild & Comfortable. Expect average highs of 15.6°C. 18% chance of snow."
What to Wear in Ulaanbaatar in September
Based on historical data for September 15, Ulaanbaatar typically experiences temperatures between 3.7°C and 15.6°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (18% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Ulaanbaatar
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
15.6°C
Daytime Peak
Average Low
3.7°C
Nighttime Low
Feels Like
15.6°C
🌤️ Feels accurate
Snow Chance
18%
Avg 0.7mm if it snows
Snowfall
0.2 cm
~18% chance
Pressure
1014.9 hPa
Medium volatility
Ulaanbaatar Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 84% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 19:00
Type I-II
🔴 27 min to burn
Type III-IV
🟡 41 min to burn
Type V-VI
🟢 68 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
8.6°C
Dry air
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
06:30
☀️ Noon
12:49
🌇 Sunset
19:08
⏱️ Daylight
12h 38m
Wind Speed
16.7 km/h
Gentle breeze
Sunshine
9.4 hrs
Direct Sun (Cloud-free)
Humidity
63%
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
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
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 September 15 averages 15.6°C with a 18% precipitation probability. Wedding/Outdoor Event Score: 80/100."
— 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
September 17
15°C • 14% rain
Score
94
September 8
18°C • 12% rain
Score
93
September 9
17.9°C • 11% rain
Score
93
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 15) in other destinations
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📍 Is Ulaanbaatar Worth Visiting on September 15?
Planning a trip to Ulaanbaatar on September 15? 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 15.6°C with a 18% historical precipitation risk.
💉 Health Advisory: 8 vaccinations are recommended for Mongolia, including COVID-19.
📊 Historical Extremes: The hottest September 15 recorded in the last 30 years saw temperatures hit 18.2°C in 2022, while the coldest dropped to -1°C in 2018.