The climate in Băile Herculane during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Băile Herculane and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 20°C (69°F), whilst at night 10°C (49°F) is normal.
| Daytime temperature | 20.4°C 68.6°F |
|---|---|
| Nightly temperature | 9.7°C 49.4°F |
| Average temperature | 15°C 59°F |
| Daily sunshine | 7.2 hrs |
| Avg rainfall | 58 mm 2.3 ins |
| Rainy days | 8 days |
| Sea temperature | 22.1°C 71.8°F |
| Humidity | 76% |
| Windspeed | 10.1kph 6 mph |
On average September is the 6th wettest month of the year in Băile Herculane with around 58mm 2.3 inches of rain making it a reasonably 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 7.2 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 Băile Herculane in September 2025.
Best places to visit in September
| Hottest month: | July | 23.6°C 74.5°F |
|---|---|---|
| Driest month: | March | 45mm 1.8ins |
| Sunniest month: | August | 9.1hrs |
| Coldest month: | January | 0.7°C 33.3°F |
| Wettest month: | June | 115mm 4.5ins |