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September Weather in Ostroda, Poland

Last updated: August 27, 2025

In September, the average temperature in Ostroda, Poland hovers around 14°C (58°F), with a minimum drop to 2°C (36°F) and potential peaks reaching 30°C (87°F). Expect 77 mm (3.0 in) of precipitation spread over 11 days, contributing to an average humidity of 75%. Embrace the varied weather patterns as you plan your visit!

September Temperature in Ostroda

In September in Ostroda, the average temperature is 14°C (58°F), with maximums reaching 30°C (87°F) and minimums dropping as low as 2°C (36°F). This wide range makes it important for travelers to pack accordingly for varying weather conditions.

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

The chart illustrates September temperature patterns in Ostroda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ostroda, September typically has an average temperature of 14°C (58°F), with highs reaching up to 30°C (87°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec313137465464656558504134
Data source: Temperature data for Ostroda 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 Ostroda

In Ostroda in September, the precipitation amount is 77 mm (3.0 in) over the course of 11 days.

September Precipitation Trends in Ostroda

The chart displays monthly precipitation patterns in Ostroda, 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 Ostroda, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec4746474085671017377724052
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ostroda

In Ostroda in September humidity is 75%. With an average temperature of 14°C (58°F), this humidity feels like a lingering blanket of warmth, making travel both refreshing and a bit stifling, as the moisture in the air may leave you feeling slightly sticky while enjoying outdoor adventures.

September Average Humidity in Ostroda

This chart illustrates the average monthly humidity levels in Ostroda, 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 Ostroda is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%79%63%61%63%65%75%85%90%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ostroda

In Ostroda 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 Ostroda.

Maximum UV Index Levels in Ostroda for September

The chart shows the monthly maximum UV Index (UVI) for Ostroda 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 Ostroda typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568875321
Data source: Ostroda 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 Ostroda Compares to Other Months

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

This table compares monthly weather conditions in Ostroda, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)47 mm (1.9 inches)91%low
February Weather0°C (32°F)46 mm (1.8 inches)90%low
March Weather3°C (37°F)47 mm (1.9 inches)87%moderate
April Weather8°C (46°F)40 mm (1.6 inches)79%moderate
May Weather12°C (54°F)85 mm (3.3 inches)63%high
June Weather18°C (65°F)67 mm (2.6 inches)61%very high
July Weather18°C (65°F)101 mm (4.0 inches)63%very high
August Weather18°C (65°F)73 mm (2.9 inches)65%high
September Weather14°C (58°F)77 mm (3.0 inches)75%moderate
October Weather10°C (50°F)72 mm (2.8 inches)85%moderate
November Weather5°C (42°F)40 mm (1.6 inches)90%low
December Weather1°C (34°F)52 mm (2.1 inches)93%low

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