Ulaanbaatar (Ulan Bator)
September
Weather in Ulaanbaatar for September 2025
Your guide to Ulaanbaatar weather in September - trends and predictions
Ulaanbaatar typically experiences moderate snowfall in September, with an average of 7 snowy days.
In general, the average temperature in Ulaanbaatar at the beginning of September is 19.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 8.9 °C by the end of September.
Snow Forecast ❄️
Temperatures
16
Dry days
7
Rainy days
7
Snow days
13°/5°
Temperatures
16 km/h
Avg max wind
68 %
Avg humidity
Ulaanbaatar in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  19° | 2  20° | 3  20° | 4 18° | 5  22° | 6  23° | 7 17° |
| 8 20° | 9 15° | 10 12° | 11 14° | 12  14° | 13  12° | 14  14° |
| 15 10° | 16 10° | 17 13° | 18 15° | 19 8° | 20 11° | 21 12° |
| 22 14° | 23 11° | 24 13° | 25 14° | 26 11° | 27  9° | 28  6° |
| 29 4° | 30 5° |
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Temperatures trend during September in Ulaanbaatar
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 19° /9° | 0 mm | 0 cm | |
| 2 Sept. | Patchy light rain with thunder | 20° /10° | 4 mm | 0 cm | |
| 3 Sept. | Patchy rain possible | 20° /7° | 0.6 mm | 0 cm | |
| 4 Sept. | Sunny | 18° /9° | 0 mm | 0 cm | |
| 5 Sept. | Thundery outbreaks possible | 22° /11° | 0.1 mm | 0 cm | |
| 6 Sept. | Light rain | 23° /9° | 1.2 mm | 0 cm | |
| 7 Sept. | Patchy rain possible | 17° /8° | 0.7 mm | 0 cm | |
| 8 Sept. | Thundery outbreaks possible | 20° /5° | 0.1 mm | 0 cm | |
| 9 Sept. | Light rain shower | 15° /4° | 2.1 mm | 0 cm | |
| 10 Sept. | Light rain shower | 12° /4° | 0.3 mm | 0 cm | |
| 11 Sept. | Sunny | 14° /5° | 0 mm | 0 cm | |
| 12 Sept. | Overcast | 14° /5° | 0 mm | 0 cm | |
| 13 Sept. | Partly cloudy | 12° /7° | 2.4 mm | 0 cm | |
| 14 Sept. | Mist | 14° /5° | 1.8 mm | 0 cm | |
| 15 Sept. | Mist | 10° /3° | 0.7 mm | 0 cm | |
| 16 Sept. | Overcast | 10° /4° | 0.1 mm | 0 cm | |
| 17 Sept. | Patchy rain possible | 13° /5° | 0.3 mm | 0 cm | |
| 18 Sept. | Thundery outbreaks possible | 15° /2° | 0.3 mm | 0.3 cm | |
| 19 Sept. | Thundery outbreaks possible | 8° /1° | 0.8 mm | 0.6 cm | |
| 20 Sept. | Sunny | 11° /2° | 0.2 mm | 0.1 cm | |
| 21 Sept. | Sunny | 12° /3° | 0 mm | 0 cm | |
| 22 Sept. | Overcast | 14° /5° | 1.3 mm | 0 cm | |
| 23 Sept. | Light rain shower | 11° /4° | 5.4 mm | 0.2 cm | |
| 24 Sept. | Patchy rain possible | 13° /3° | 0 mm | 0 cm | |
| 25 Sept. | Patchy light rain with thunder | 14° /3° | 1.9 mm | 0.3 cm | |
| 26 Sept. | Patchy rain possible | 11° /3° | 0.3 mm | 0 cm | |
| 27 Sept. | Cloudy | 9° /3° | 4.8 mm | 0 cm | |
| 28 Sept. | Moderate or heavy snow showers | 6° /0° | 6.2 mm | 4 cm | |
| 29 Sept. | Patchy rain possible | 4° /-2° | 2 mm | 1.7 cm | |
| 30 Sept. | Sunny | 5° /-2° | 0.2 mm | 0.1 cm | |
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Important Notice
Our weather forecast for Ulaanbaatar in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Ulaanbaatar forecast closer to your planned date for the most up-to-date weather information.
Ulaanbaatar in September - FAQ
What are the expected maximum and minimum temperatures in Ulaanbaatar during September?
During September, expect a variety of temperatures with highs around 13° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Ulaanbaatar during September?
In September, Ulaanbaatar can expect light to moderate rainfall, totaling 37.9 mm across approximately 7 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Ulaanbaatar in September 2025?
Ulaanbaatar experiences an average snowfall of 7.23 cm during September, occurring over 7 days.
What are the typical wind conditions in Ulaanbaatar during September?
The average wind speed in Ulaanbaatar during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
Ulaanbaatar snow forecast September 2025
Track daily snowfall levels and discover Ulaanbaatar’s snowy potential this September ❄️
September rainfall patterns in Ulaanbaatar
Explore the daily rainfall trends and prepare for Ulaanbaatars September weather 💧
UV exposure in Ulaanbaatar during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Ulaanbaatar?Get accurate weather forecasts for Ulaanbaatar, located at latitude 47.908 and longitude 106.883. Stay updated with localized weather information tailored for Ulaanbaatar.
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