The climate in Selenge during September can be summarized as cool and reasonably dry.
September is in the fall / autumn in Selenge and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 1°C (35°F) is normal.
| Daytime temperature | 16.2°C 61.2°F | 
|---|---|
| Nightly temperature | 1.4°C 34.5°F | 
| Average temperature | 8.8°C 47.8°F | 
| Daily sunshine | 8.9 hrs | 
| Avg rainfall | 32 mm 1.2 ins | 
| Rainy days | 9 days | 
| Sea temperature | 14°C 57.1°F | 
| Humidity | 61% | 
| Windspeed | 8.3kph 5 mph | 
On average September is the 4th wettest month of the year in Selenge with around 32mm 1.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.9 hours of sunshine per day.
				
						
						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 Selenge in September 2025.
Best places to visit in September
| Hottest month: | July | 22.4°C 72.3°F | 
|---|---|---|
| Driest month: | January | 2mm 0.1ins | 
| Sunniest month: | February | 7.9hrs | 
| Coldest month: | January | -13°C 8.6°F | 
| Wettest month: | July | 101mm 4ins |