The climate in Petroşani during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Petroşani and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 18°C (65°F), whilst at night 8°C (46°F) is normal.
Daytime temperature | 18.4°C 65°F |
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Nightly temperature | 7.9°C 46.1°F |
Average temperature | 13.1°C 55.6°F |
Daily sunshine | 6.8 hrs |
Avg rainfall | 58 mm 2.3 ins |
Rainy days | 9 days |
Sea temperature | 21.6°C 70.8°F |
Humidity | 79% |
Windspeed | 11.2kph 7 mph |
On average September is the 6th wettest month of the year in Petroşani with around 58mm 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 6.8 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 Petroşani in September 2025.
Best places to visit in September
Hottest month: | July | 21.1°C 70°F |
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Driest month: | March | 45mm 1.8ins |
Sunniest month: | August | 8.3hrs |
Coldest month: | January | -0°C 32°F |
Wettest month: | June | 122mm 4.8ins |