Weather in Ulan Bator for September 2025
In general, the average temperature in Ulan Bator 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.
Ulan Bator sees moderate rainfall in September, averaging 9 rainy days.
With an average of 5 snowy days, Ulan Bator enjoys a light touch of snow in September.
Is September a good time to visit Ulan Bator? check out the best time to travel to Ulan Bator page.
- New! Chat with our AI weatherman - it’s amazing and free.
Ulan Bator 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 Ulan Bator
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 | |
Next |
Ulan Bator in September - FAQ
What to pack to Ulan Bator in September?
As you prepare for your trip to Ulan Bator 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 Ulan Bator, 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 Ulan Bator
September snowfall in Ulan Bator
UV exposure in Ulan Bator during September
Quick links
Get accurate weather forecasts for Ulan Bator, located at latitude 47.908 and longitude 106.883. Stay updated with localized weather information tailored for Ulan Bator.