Mongolia

Mongolia Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Mongolia in September.

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Ulaanbaatar Baruun Urt Ölgii Tsetserleg

Considering a trip to Mongolia this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Mongolia in September

In September, Mongolia experiences a range of weather conditions, with temperatures that range from mild to warm and precipitation levels ranging from low to moderate.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is mild in Ölgii at 14°C (57°F) to warm in Zamiin Ude at 23°C (73°F). Nighttime temperatures generally drop to 9°C (48°F) in Zamiin Ude and 1°C (34°F) in Ölgii.

For specific regional insights in Mongolia, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From low rainfall in Baitag with an average of 11 mm (0.4 in) to moderate rainfall in Tarialan with 44 mm (1.7 in).

Average sunshine

Sunshine is generally plentiful throughout many areas. Ulaanbaatar enjoys about 247 hours of sunlight, ideal for those seeking sunny weather.

Explore Mongolia by month

Pick a month to see the average temperature, rainfall and sunshine in Mongolia — and find the best time to visit. (based on Ulaanbaatar)

January-15°C (5°F) February-10°C (14°F) March0°C (32°F) April9°C (48°F) May16°C (61°F) June22°C (72°F) This monthJuly24°C (75°F) August22°C (72°F) September16°C (61°F) October7°C (45°F) November-5°C (23°F) December-13°C (9°F)
Best Time to Visit Mongolia →

Best Places to Visit in Mongolia in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Mongolia.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Mongolia

What is the weather like in September for some of the most popular destinations in Mongolia?

Temperature range in Mongolia (September)

Precipitation variation in Mongolia (September)

Ulaanbaatar

In September Ulaanbaatar generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 2°C (36°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
22°C (72°F)
16°C (61°F)
7°C (45°F)
Min temperature
9°C (48°F)
2°C (36°F)
-6°C (21°F)
Monthly sun hours
259 hours
247 hours
230 hours
Monthly rainfall
72 mm (2.8 in)
43 mm (1.7 in)
18 mm (0.7 in)
Monthly rainy days
16 days
9 days
6 days
Weather conditions
perfect
tolerable
unpleasant
Climate in Ulaanbaatar →

Gobi desert

In September Gobi desert generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 6°C (43°F) and low monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
20°C (68°F)
11°C (52°F)
Min temperature
13°C (55°F)
6°C (43°F)
-3°C (27°F)
Monthly rainfall
39 mm (1.5 in)
16 mm (0.6 in)
8.1 mm (0.3 in)
Monthly rainy days
13 days
7 days
5 days
Weather conditions
perfect
perfect
tolerable
Climate in Gobi desert →

Baitag

In September Baitag generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 5°C (41°F) and low monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
25°C (77°F)
19°C (66°F)
9°C (48°F)
Min temperature
12°C (54°F)
5°C (41°F)
-4°C (25°F)
Monthly sun hours
331 hours
286 hours
251 hours
Monthly rainfall
17 mm (0.7 in)
11 mm (0.4 in)
9.3 mm (0.4 in)
Monthly rainy days
6 days
5 days
5 days
Weather conditions
perfect
perfect
unpleasant
Climate in Baitag →

Baruun Urt

In September Baruun Urt generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 6°C (43°F) and low monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
20°C (68°F)
10°C (50°F)
Min temperature
13°C (55°F)
6°C (43°F)
-3°C (27°F)
Monthly sun hours
290 hours
280 hours
245 hours
Monthly rainfall
47 mm (1.9 in)
30 mm (1.2 in)
14 mm (0.6 in)
Monthly rainy days
12 days
7 days
5 days
Weather conditions
perfect
perfect
unpleasant
Climate in Baruun Urt →

Dalanzadgad

In September Dalanzadgad generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 8°C (46°F) and low monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
21°C (70°F)
12°C (54°F)
Min temperature
14°C (57°F)
8°C (46°F)
-1°C (30°F)
Monthly rainfall
37 mm (1.5 in)
18 mm (0.7 in)
7.5 mm (0.3 in)
Monthly rainy days
9 days
6 days
4 days
Weather conditions
perfect
perfect
tolerable
Climate in Dalanzadgad →

Is your destination not in the list? Have a look at all destinations in Mongolia.

Popular cities in September

Day & night temperatures, rainfall and average weather in Mongolia in September.

City Weather Day temp Night temp Rainfall
Ulaanbaatar 16°C (61°F) 2°C (36°F) 43 mm (1.7 in)
Baruun Urt 20°C (68°F) 6°C (43°F) 30 mm (1.2 in)
Ölgii 14°C (57°F) 1°C (34°F) 16 mm (0.6 in)
Tsetserleg 16°C (61°F) 1°C (34°F) 43 mm (1.7 in)
Dalanzadgad 21°C (70°F) 8°C (46°F) 18 mm (0.7 in)
Saikhan-ovoo 22°C (72°F) 7°C (45°F) 13 mm (0.5 in)

Mongolia weather in September: frequently asked questions

What is the weather like in Mongolia in September?

In September, Mongolia generally has tolerable weather conditions. Ulaanbaatar sees daytime temperatures near 16°C (61°F), with nights cooling to roughly 2°C (36°F).

What is the average temperature in Mongolia in September?

In Ulaanbaatar, the average daytime high in September is 16°C (61°F), while nighttime temperatures drop to around 2°C (36°F).

Does Mongolia get a lot of rain in September?

September is on the drier side in Mongolia. Ulaanbaatar averages only about 43 mm (1.7 in), with most days staying dry.

Is September a Good Time to Visit Mongolia?

Given the typically tolerable weather conditions in Ulaanbaatar, September might be a good time to visit Mongolia.

Generally speaking, the best visiting conditions can be found in June, July and August offering mostly perfect weather in Ulaanbaatar. On the other hand, the weather in January, February, March, November and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Mongolia.

Weather and climate has detailed information for every country in the world. Are you going to Mongolia? Get detailed historical weather averages for many cities in Mongolia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

Stay in a Mongolian Ger

Discover the magic of Mongolia, from the Gobi Desert to Khövsgöl Lake, and experience traditional nomadic life in a Ger under starlit skies.
Be amazed by the Altai mountains

The Atlai mountains are a sparsely populated area that most tourists have not yet discovered. Definitely bucket list material for the adventurous travelers among us.
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