Mongolia in september: average Weather, Temperature and Climate, Where to go?
Weather in Mongolia in september 2025
In this section, find the the weather forecast for september for most popular cities in Mongolia. These datas are statistics for the month of september from weather reports for many years. The percentage indicates the possibility of having the weather mentioned.
Average weather in september in Ulaanbaatar
tolerable weather 82.4cm
Weather at 6am
56°F
Clear/Sunny
57% of time
23%
9%
4%
Weather at 12pm
49°F
Clear/Sunny
59% of time
21%
10%
6%
Weather at 6pm
43°F
Clear/Sunny
49% of time
29%
9%
6%
Weather at 3am
52°F
59%
28%
6%
5%
More information about the weather in Ulaanbaatar in september
Where to go in Mongolia in september?
Where to go in Mongolia in september: destination map
Where to go in each region in september?
| Central of Mongolia (Ulaanbaatar, Tsetserleg, Arvayheer...) | 58°F to 59°F | 2 à 3 days | tolerable weather |
| East of Mongolia (Choybalsan, Ovoot, Undurkhaan...) | 63°F to 67°F | 2 à 3 days | good weather |
| Gobi (Dalanzadgad, Altay (Govi-Altai), Saynshand...) | 49°F to 72°F | 1 à 3 days | good weather* |
| North of Mongolia (Hatgal, Erdenet, Darkhan...) | 54°F to 61°F | 2 à 4 days | tolerable weather* |
| West of Mongolia (Ulaangom, Uliastay, Khovd...) | 52°F to 61°F | 1 à 3 days | bad weather* |
Where should you go in Mongolia in september when it comes to the weather?
Remember:
The climate in Mongolia in september ranges from good to very bad depending on the region and city.
Although it is not perfect the weather in Mongolia that month is, on average, pretty good in Dalanzadgad and Choybalsan. I allows to savor vacation in these places. And even why not take a little time to enjoy the weather for... just be relax!
If you do not go lazing in the sun, but, for example for cultural tours or hiking, the cities of Ulaanbaatar, Ulaangom, Erdenet, Tsetserleg and Darkhan have a quite correct weather for it in september. Eventually, avoid going in the cities of Uliastay and Hatgal in september because the climate is bad.
Climate in Mongolia in september
Climate in Ulaanbaatar in september
In september, the mean temperature in Ulaanbaatar is 52°F (maximum temperature is 58°F and minimum temperature is 45°F). The climate is rather fresh here in the month of september, but it is liveable by dressing cosy. With about 1.8in over 3 days, rain may be scarce for your vacations.
With proper weather, september is okay (but not the best month) for traveling in this city.
| September | |||
| Average temperature | 52°F | ||
| Highest temperature | 58°F | ||
| Lowest temperature | 45°F | ||
| Rainfall | 1.8in | ||
| Number of days with rainfall | 3 day(s) (10%) | ||
| Humidity | 68% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 24% | ||
| Length of day | 12:36 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Altay (Govi-Altai) in september
In the month of september, maximum temperature is 58°F and minimum temperature is 47°F (for an average temperature of 52°F). The climate is rather cold in this city in september, but it is tolerable when dressing warm. With just 1in over 2 days, rainfall is infrequent for your stay.
With an unfavorable weather, september is not recommended month to go there.
| September | |||
| Average temperature | 52°F | ||
| Highest temperature | 58°F | ||
| Lowest temperature | 47°F | ||
| Rainfall | 1in | ||
| Number of days with rainfall | 2 day(s) (5%) | ||
| Humidity | 44% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 16% | ||
| Length of day | 12:34 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Arvayheer in september
In september, maximum temperature is 59°F and minimum temperature is 49°F (for an average temperature of 54°F). The climate is rather cold around this city in this month, but it is endurable when dressing warm. With barely 1.2in over 2 days,
it rains very little throughout your trip.
With a correct weather, september is okay (but not the best time) for traveling in that area.
| September | |||
| Average temperature | 54°F | ||
| Highest temperature | 59°F | ||
| Lowest temperature | 49°F | ||
| Rainfall | 1.2in | ||
| Number of days with rainfall | 2 day(s) (7%) | ||
| Humidity | 50% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 18% | ||
| Length of day | 12:34 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Choybalsan in september
In the month of september, maximum temperature is 65°F and minimum temperature is 54°F (for an average temperature of 59°F). The climate is quite fresh in that area in september, but it is bearable by dressing hot. With about 1.8in over 3 days, rainfall is infrequent throughout your trip.
With a good weather, september is a good time to go in Choybalsan.
| September | |||
| Average temperature | 59°F | ||
| Highest temperature | 65°F | ||
| Lowest temperature | 54°F | ||
| Rainfall | 1.8in | ||
| Number of days with rainfall | 3 day(s) (11%) | ||
| Humidity | 56% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 27% | ||
| Length of day | 12:36 | ||
| Our opinion at whereandwhen.net | good |
Climate in Dalanzadgad in september
In september, maximum temperature is 68°F and minimum temperature is 58°F (for an average temperature of 63°F). The climate is rather cold there in the month of september, but it is bearable when dressing hot. With just 0.5in over 1 days,
it rains very little during your journey.
With a good weather, the month of september is an advisable month to go in Dalanzadgad.
| September | |||
| Average temperature | 63°F | ||
| Highest temperature | 68°F | ||
| Lowest temperature | 58°F | ||
| Rainfall | 0.5in | ||
| Number of days with rainfall | 1 day(s) (3%) | ||
| Humidity | 33% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 15% | ||
| Length of day | 12:32 | ||
| Our opinion at whereandwhen.net | good |
All cities in Mongolia in september
| Ulaanbaatar in september | tolerable weather |
| Altay (Govi-Altai) in september | tolerable weather |
| Arvayheer in september | tolerable weather |
| Choybalsan in september | good weather |
| Dalanzadgad in september | good weather |
| Darkhan in september | tolerable weather |
| Erdenet in september | tolerable weather |
| Hatgal in september | very bad weather |
| Khovd in september | good weather |
| Ovoot in september | good weather |
| Saynshand in september | good weather |
| Tsetserleg in september | tolerable weather |
| Ulaangom in september | tolerable weather |
| Uliastay in september | very bad weather |
| Undurkhaan in september | good weather |
| Bayanhongor in september | very bad weather |
| Chihertey in september | bad weather |
| Baruun-Urt in september | good weather |
| Choyr in september | good weather |
| Ider in september | very bad weather |
| Javhlant in september | good weather |
| Sühbaatar in september | tolerable weather |
| Ulaan-Uul in september | good weather |
Weather data for Mongolia in september:
Weather data for Mongolia in september is derived from an average of the weather forecast since 2009 in Mongolia. There is a margin of error and these forecasts are to be considered as general information only. The weather in Mongolia can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Mongolia.