The climate in Comandău during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Comandău and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 17°C (63°F), whilst at night 5°C (42°F) is normal.
| Daytime temperature | 17.2°C 62.9°F | 
|---|---|
| Nightly temperature | 5.3°C 41.5°F | 
| Average temperature | 11.2°C 52.2°F | 
| Daily sunshine | 6.6 hrs | 
| Avg rainfall | 59 mm 2.3 ins | 
| Rainy days | 9 days | 
| Sea temperature | 21.4°C 70.6°F | 
| Humidity | 80% | 
| Windspeed | 10.1kph 6 mph | 
On average September is the 6th wettest month of the year in Comandău with around 59mm 2.3 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 6.6 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 Comandău in September 2025.
Best places to visit in September
| Hottest month: | July | 20.3°C 68.5°F | 
|---|---|---|
| Driest month: | March | 42mm 1.7ins | 
| Sunniest month: | August | 7.7hrs | 
| Coldest month: | January | -2.2°C 28°F | 
| Wettest month: | June | 117mm 4.6ins |