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September Weather in Ostrowo, Poland

Last updated: August 27, 2025

In September, the average temperature in Ostrowo, Poland hovers around 15°C (60°F). Expect a minimum of 6°C (43°F) and a maximum reaching 28°C (83°F). During this time, the area typically experiences 70 mm (2.7 in) of precipitation over 13 days, with an average humidity of 81%.

September Temperature in Ostrowo

In September in Ostrowo, the average temperature is 15°C (60°F). Maximums can reach 28°C (83°F), while minimums can drop to as low as 6°C (43°F). This pleasant climate makes Ostrowo an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates September temperature patterns in Ostrowo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ostrowo, September typically has an average temperature of 15°C (60°F), with highs reaching up to 28°C (83°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec353538445262646559524437
Data source: Temperature data for Ostrowo 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 Ostrowo

In Ostrowo in September, the precipitation amount is 70 mm (2.7 in) over the course of 13 days.

September Precipitation Trends in Ostrowo

The chart displays monthly precipitation patterns in Ostrowo, 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 Ostrowo, September typically receives around 70 mm (2.7 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec514751325152846870905760
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ostrowo

In Ostrowo in September, humidity is 81%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sluggish and draining, which can challenge even the best-prepared traveler.

September Average Humidity in Ostrowo

This chart illustrates the average monthly humidity levels in Ostrowo, 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 Ostrowo is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%88%84%77%76%76%76%81%86%89%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ostrowo

In Ostrowo 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 Ostrowo.

Maximum UV Index Levels in Ostrowo for September

The chart shows the monthly maximum UV Index (UVI) for Ostrowo 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 Ostrowo typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124567765311
Data source: Ostrowo 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 Ostrowo Compares to Other Months

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

This table compares monthly weather conditions in Ostrowo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)51 mm (2.0 inches)89%low
February Weather1°C (35°F)47 mm (1.8 inches)89%low
March Weather3°C (38°F)51 mm (2.0 inches)88%moderate
April Weather6°C (44°F)32 mm (1.3 inches)84%moderate
May Weather11°C (52°F)51 mm (2.0 inches)76%high
June Weather17°C (62°F)52 mm (2.0 inches)76%high
July Weather18°C (65°F)84 mm (3.3 inches)76%high
August Weather18°C (65°F)68 mm (2.7 inches)76%high
September Weather15°C (60°F)70 mm (2.7 inches)81%moderate
October Weather11°C (52°F)90 mm (3.5 inches)86%moderate
November Weather7°C (44°F)57 mm (2.2 inches)89%low
December Weather3°C (37°F)60 mm (2.4 inches)89%low

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