Mongolia (Ulan Bator)
September
Weather in Mongolia for September 2026
Your guide to Mongolia weather in September - trends and predictions
With an average of 3 snowy days, Mongolia usually enjoys a light touch of snow in September.
According to Mongolia snow forecast for September 2026, no snow is expected at the beginning of the month.The forecast for the first days of September 2026 in Mongolia predicts temperatures to be around 18 °C, close to the historical average.
In general, the average temperature in Mongolia at the beginning of September is 19.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11 °C by the end of September.
With an average of 5 rainy days, Mongolia experiences minimal rainfall in September.
Snow Forecast ❄️
Temperatures
Rain 🌧️
22
Dry days
5
Rainy days
3
Snow days
13°/5°
Temperatures
16 km/h
Avg max wind
65 %
Avg humidity
Mongolia Weather September
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What’s the Weather Like in Mongolia This September?
Discover the average temperatures and weather trends across Mongolia’s cities this September.
Temperatures trend during September in Mongolia
See the weather trend as well as the moving average line
September weather in Mongolia day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 25° /11° | 0 mm | 0 cm | |
| 2 Sept. |  Sunny | 17° /7° | 0.1 mm | 0 cm | |
| 3 Sept. | Sunny | 20° /6° | 0 mm | 0 cm | |
| 4 Sept. | Sunny | 24° /12° | 0 mm | 0 cm | |
| 5 Sept. | Overcast | 15° /9° | 2.8 mm | 0 cm | |
| 6 Sept. | Overcast | 17° /8° | 0.6 mm | 0 cm | |
| 7 Sept. | Overcast | 19° /9° | 0 mm | 0 cm | |
| 8 Sept. |  Patchy rain possible | 18° /8° | 4 mm | 0 cm | |
| 9 Sept. | Light rain shower | 15° /4° | 1.4 mm | 0 cm | |
| 10 Sept. | Light rain shower | 14° /4° | 0.2 mm | 0 cm | |
| 11 Sept. | Sunny | 14° /5° | 0 mm | 0 cm | |
| 12 Sept. | Overcast | 15° /5° | 1 mm | 0 cm | |
| 13 Sept. |  Light rain | 10° /5° | 5.7 mm | 0 cm | |
| 14 Sept. | Patchy rain possible | 13° /4° | 1.2 mm | 0 cm | |
| 15 Sept. |  Mist | 9° /2° | 0.4 mm | 0 cm | |
| 16 Sept. | Overcast | 10° /2° | 0 mm | 0 cm | |
| 17 Sept. | Sunny | 13° /4° | 0.2 mm | 0 cm | |
| 18 Sept. |  Thundery outbreaks possible | 14° /3° | 0.2 mm | 0.2 cm | |
| 19 Sept. | Thundery outbreaks possible | 10° /2° | 0.5 mm | 0.4 cm | |
| 20 Sept. | Sunny | 12° /3° | 0.1 mm | 0.1 cm | |
| 21 Sept. | Sunny | 14° /3° | 0 mm | 0 cm | |
| 22 Sept. | Overcast | 14° /5° | 4.7 mm | 0 cm | |
| 23 Sept. | Light rain shower | 10° /3° | 4.9 mm | 0.1 cm | |
| 24 Sept. | Sunny | 13° /3° | 0 mm | 0 cm | |
| 25 Sept. |  Patchy light rain with thunder | 14° /4° | 1.3 mm | 0.2 cm | |
| 26 Sept. | Patchy rain possible | 13° /4° | 0.2 mm | 0 cm | |
| 27 Sept. |  Cloudy | 11° /4° | 3.2 mm | 0 cm | |
| 28 Sept. |  Moderate or heavy snow showers | 10° /2° | 4.2 mm | 2.6 cm | |
| 29 Sept. | Patchy rain possible | 8° /1° | 1.4 mm | 1.1 cm | |
| 30 Sept. | Sunny | 8° /0° | 0.1 mm | 0.1 cm | |
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Important Notice
Our weather forecast for Mongolia 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 Mongolia forecast closer to your planned date for the most up-to-date weather information.
Change Month
Mongolia in September - FAQ
What are the expected maximum and minimum temperatures in Mongolia 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 Mongolia during September?
In September, Mongolia can expect light to moderate rainfall, totaling 36.5 mm across approximately 5 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Mongolia in September 2026?
Mongolia experiences an average snowfall of 4.8 cm during September, occurring over 3 days.
What are the typical wind conditions in Mongolia during September?
The average wind speed in Mongolia during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
Mongolia snow forecast September 2026
Track daily snowfall levels and discover Mongolia’s snowy potential this September ❄️
On average, Mongolia sees 3 snowy days during September, with approximately 4.8 cm of total snowfall.
September rainfall patterns in Mongolia
Explore the daily rainfall trends and prepare for Mongolias September weather 💧
Typically, Mongolia has 5 rainy days in September with a total of 36.5 mm of rainfall.
UV exposure in Mongolia during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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