Weather in Ulaanbaatar for September 2025
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.
Ulaanbaatar sees moderate rainfall in September, averaging 9 rainy days.
With an average of 5 snowy days, Ulaanbaatar enjoys a light touch of snow in September.
Is September a good time to visit Ulaanbaatar? check out the best time to travel to Ulaanbaatar page.
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Ulaanbaatar in September average weather
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° |
You can click on date
Temperatures trend during September in Ulaanbaatar
September weather day by day
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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Ulaanbaatar in September - FAQ
What to pack to Ulaanbaatar in September?
As you prepare for your trip to Ulaanbaatar in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Ulaanbaatar, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Ulaanbaatar
September snowfall in Ulaanbaatar
UV exposure in Ulaanbaatar during September
Quick links
Get accurate weather forecasts for Ulaanbaatar, located at latitude 47.908 and longitude 106.883. Stay updated with localized weather information tailored for Ulaanbaatar.