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September Weather in Petrosani, Romania

Last updated: August 27, 2025

In September, the average temperature in Petrosani, Romania is a comfortable 13°C (56°F). Visitors can expect a range of temperatures, with a minimum of -4°C (26°F) and a maximum reaching up to 28°C (83°F). During this month, 54 mm (2.1 in) of precipitation typically falls over 9 days, contributing to an average humidity level of 58%.

September Temperature in Petrosani

In September in Petrosani, the average temperature is 13°C (56°F). Maximum temperatures can reach up to 28°C (83°F), while minimum temperatures can drop as low as -4°C (26°F). Be prepared for a wide range of temperatures when planning your travels during this month.

September Weather in Petrosani: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Petrosani, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Petrosani, September typically has an average temperature of 13°C (56°F), with highs reaching up to 28°C (83°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec263237455360636456474032
Data source: Temperature data for Petrosani generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Petrosani

In Petrosani in September, the precipitation amount is 54 mm (2.1 in) over a span of 9 days.

September Precipitation Trends in Petrosani

The chart displays monthly precipitation patterns in Petrosani, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Petrosani, September typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec576580771621611198454626296
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Petrosani

In Petrosani in September, humidity is 58%. With an average temperature of 13°C (56°F), this humidity feels like a refreshing coolness that invigorates the senses, making it pleasant for traveling as long as you dress in layers to adjust to the slight chill.

September Average Humidity in Petrosani

This chart illustrates the average monthly humidity levels in Petrosani, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Petrosani is approximately 58%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%86%83%74%70%67%65%51%58%80%88%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Petrosani

In Petrosani in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Petrosani.

Maximum UV Index Levels in Petrosani for September

The chart shows the monthly maximum UV Index (UVI) for Petrosani in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Petrosani typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246789987532
Data source: Petrosani September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Petrosani Compares to Other Months

Weather in Petrosani varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Petrosani, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Petrosani, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)57 mm (2.3 inches)91%low
February Weather0°C (33°F)65 mm (2.6 inches)86%moderate
March Weather3°C (37°F)80 mm (3.1 inches)83%high
April Weather7°C (45°F)77 mm (3.0 inches)74%high
May Weather12°C (53°F)162 mm (6.4 inches)70%very high
June Weather16°C (60°F)161 mm (6.4 inches)67%very high
July Weather17°C (63°F)119 mm (4.7 inches)65%very high
August Weather18°C (64°F)83 mm (3.3 inches)51%very high
September Weather13°C (56°F)54 mm (2.1 inches)58%high
October Weather8°C (48°F)62 mm (2.5 inches)80%moderate
November Weather5°C (40°F)62 mm (2.4 inches)88%moderate
December Weather0°C (32°F)96 mm (3.8 inches)90%low

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