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September Weather in Ostrowek, Poland

Last updated: August 27, 2025

In September, the average temperature in Ostrowek, Poland hovers around 15°C (59°F), providing a comfortable climate. Temperatures can vary significantly, with minimums dipping to 2°C (35°F) and maximums peaking at 30°C (87°F). Expect about 76 mm (3.0 in) of precipitation over 12 days, contributing to an average humidity of 71%, which adds a bit of moisture to the air.

September Temperature in Ostrowek

In September in Ostrowek, the average temperature is 15°C (59°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop as low as 2°C (35°F). Be sure to pack layers for your trip, as temperatures can vary widely throughout the day.

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

The chart illustrates September temperature patterns in Ostrowek, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ostrowek, September typically has an average temperature of 15°C (59°F), with highs reaching up to 30°C (87°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec313338475767686759504234
Data source: Temperature data for Ostrowek 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 Ostrowek

In Ostrowek in September, the total precipitation amount is 76 mm (3.0 in), occurring over the course of 12 days.

September Precipitation Trends in Ostrowek

The chart displays monthly precipitation patterns in Ostrowek, 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 Ostrowek, September typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec414440358366808876683352
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ostrowek

In Ostrowek in September humidity is 71%. With an average temperature of 15°C (59°F), this humidity feels like a damp embrace, making outdoor activities slightly uncomfortable and encouraging travelers to seek shade or indoor attractions to escape the muggy air.

September Average Humidity in Ostrowek

This chart illustrates the average monthly humidity levels in Ostrowek, 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 Ostrowek is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%87%76%58%56%59%60%71%86%90%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ostrowek

In Ostrowek in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Ostrowek.

Maximum UV Index Levels in Ostrowek for September

The chart shows the monthly maximum UV Index (UVI) for Ostrowek 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 Ostrowek typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124567875321
Data source: Ostrowek 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 Ostrowek Compares to Other Months

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

This table compares monthly weather conditions in Ostrowek, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)41 mm (1.6 inches)92%low
February Weather0°C (33°F)44 mm (1.7 inches)90%low
March Weather3°C (39°F)40 mm (1.6 inches)87%moderate
April Weather9°C (48°F)35 mm (1.4 inches)76%moderate
May Weather14°C (57°F)83 mm (3.3 inches)58%high
June Weather20°C (68°F)66 mm (2.6 inches)56%high
July Weather20°C (68°F)80 mm (3.2 inches)59%very high
August Weather20°C (67°F)88 mm (3.4 inches)60%high
September Weather15°C (59°F)76 mm (3.0 inches)71%moderate
October Weather10°C (51°F)68 mm (2.7 inches)86%moderate
November Weather5°C (42°F)33 mm (1.3 inches)90%low
December Weather1°C (35°F)52 mm (2.0 inches)93%low

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