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September Weather in Firlej, Poland

Last updated: August 27, 2025

In Firlej, Poland, the average temperature in September hovers around 15°C (59°F), with a minimum dipping to 1°C (35°F) and a maximum reaching up to 30°C (86°F). Expect 76 mm (3.0 in) of precipitation spread over approximately 11 days, and enjoy an average humidity level of 68% during this period.

September Temperature in Firlej

In September in Firlej, the average temperature is 15°C (59°F). Maximum temperatures can reach as high as 30°C (86°F), while minimum temperatures can dip down to 1°C (35°F). This range makes Firlej an ideal destination for travelers seeking a mix of mild weather and the opportunity for outdoor activities.

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

The chart illustrates September temperature patterns in Firlej, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Firlej, September typically has an average temperature of 15°C (59°F), with highs reaching up to 30°C (86°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec303338485768686759504134
Data source: Temperature data for Firlej 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 Firlej

In Firlej in September, the total precipitation amount is 76 mm (3.0 in), recorded over a period of 11 days.

September Precipitation Trends in Firlej

The chart displays monthly precipitation patterns in Firlej, 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 Firlej, September typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec3944394974708710276643652
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Firlej

In Firlej in September, humidity is 68%. With an average temperature of 15°C (59°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls and sightseeing, but travelers should be prepared for occasional discomfort as the mugginess can dampen outdoor activities.

September Average Humidity in Firlej

This chart illustrates the average monthly humidity levels in Firlej, 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 Firlej is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%76%58%56%56%55%68%84%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Firlej

In Firlej in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Firlej, you can refer to this Hourly UV Index in Firlej.

Maximum UV Index Levels in Firlej for September

The chart shows the monthly maximum UV Index (UVI) for Firlej 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 Firlej typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876321
Data source: Firlej 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 Firlej Compares to Other Months

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

This table compares monthly weather conditions in Firlej, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)39 mm (1.5 inches)91%low
February Weather0°C (33°F)44 mm (1.7 inches)89%low
March Weather4°C (39°F)39 mm (1.5 inches)86%moderate
April Weather9°C (48°F)49 mm (1.9 inches)76%moderate
May Weather14°C (57°F)74 mm (2.9 inches)58%high
June Weather20°C (68°F)70 mm (2.8 inches)56%very high
July Weather20°C (68°F)87 mm (3.4 inches)56%very high
August Weather20°C (68°F)102 mm (4.0 inches)55%high
September Weather15°C (59°F)76 mm (3.0 inches)68%high
October Weather10°C (51°F)64 mm (2.5 inches)84%moderate
November Weather5°C (42°F)36 mm (1.4 inches)89%low
December Weather1°C (34°F)52 mm (2.1 inches)91%low

Compare Firlej's Climate with Cities Worldwide