Weather in Ulan Bator, Ulaanbaatar, Mongolia in September
In an average September, Ulan Bator sees a daily high around 15°C and a low around 1°C, based on 1981–2026 of local climate records.
| Average high | 15°C |
|---|---|
| Typical high range | 8°C to 21°C |
| Average low | 1°C |
| Typical low range | -4°C to 6°C |
| Average daily precipitation | 0 mm |
September records
The most extreme September on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
28°C
2014-09-03
Lowest
-4°C
1982-09-25
Low
Highest
13°C
2023-09-06
Lowest
-9°C
1982-09-26
Feels-like
Highest
28°C
2019-09-03
Lowest
-19°C
1993-09-26
Humidity
Highest
10.5 g/m³
1999-09-03
Lowest
2.0 g/m³
2002-09-18
Wind
Highest
55 km/h
1993-09-26
Lowest
8 km/h
1989-09-07
Precip
Wettest
67 mm
2018
Driest
3 mm
2007
See Ulan Bator's live weather grade →
Visiting Ulan Bator in September? See how its comfort stacks up against where you live.
Compare Ulan Bator with your city →