The climate in Valea Ierii during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Valea Ierii and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 19°C (66°F), whilst at night 8°C (46°F) is normal.
| Daytime temperature | 18.8°C 65.8°F | 
|---|---|
| Nightly temperature | 7.8°C 46°F | 
| Average temperature | 13.3°C 55.9°F | 
| Daily sunshine | 7 hrs | 
| Avg rainfall | 49 mm 1.9 ins | 
| Rainy days | 10 days | 
| Sea temperature | 21°C 69.9°F | 
| Humidity | 79% | 
| Windspeed | 9kph 6 mph | 
On average September is the 6th wettest month of the year in Valea Ierii with around 49mm 1.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 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 Valea Ierii in September 2025.
Best places to visit in September
| Hottest month: | July | 21.8°C 71.2°F | 
|---|---|---|
| Driest month: | March | 36mm 1.4ins | 
| Sunniest month: | August | 8.5hrs | 
| Coldest month: | January | -0.2°C 31.6°F | 
| Wettest month: | June | 109mm 4.3ins |