Altan-Ovoo Weather in September
What's the weather like in Altan-Ovoo (Arhangay) in September 2025?
The climate in Altan-Ovoo during September can be summarized as cool and dry.
September is in the fall / autumn in Altan-Ovoo and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 16°C (60°F), whilst at night 1°C (34°F) is normal.
| Daytime temperature | 15.5°C 59.8°F |
|---|---|
| Nightly temperature | 1.2°C 34.1°F |
| Average temperature | 8.3°C 46.9°F |
| Daily sunshine | 9.3 hrs |
| Avg rainfall | 27 mm 1.1 ins |
| Rainy days | 8 days |
| Sea temperature | 15°C 59.1°F |
| Humidity | 57% |
| Windspeed | 8.3kph 5 mph |
On average September is the 5th wettest month of the year in Altan-Ovoo with around 27mm 1.1 inches of rain making it a dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.3 hours of sunshine per day.
September temperatures in Altan-Ovoo
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Altan-Ovoo in September 2025.
Other monthly averages
Best places to visit in September
Altan-Ovoo weather stats
| Hottest month: | July | 20.7°C 69.3°F |
|---|---|---|
| Driest month: | January | 2mm 0.1ins |
| Sunniest month: | February | 8.1hrs |
| Coldest month: | January | -9.1°C 15.6°F |
| Wettest month: | July | 92mm 3.6ins |
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