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September Weather in Ostrow Mazowiecka, Poland

Last updated: August 27, 2025

In September, the average temperature in Ostrow Mazowiecka, Poland hovers around 14°C (58°F). Expect a range from a brisk 1°C (35°F) to a warm 29°C (85°F). During this month, you can anticipate approximately 70 mm (2.8 in) of precipitation spread over 12 days, with an average humidity of 71%. Perfect for those who enjoy a bit of variable weather!

September Temperature in Ostrow Mazowiecka

In September in Ostrow Mazowiecka, the average temperature is 14°C (58°F). The maximum can reach 29°C (85°F), while the minimum can drop as low as 1°C (35°F). This varied climate makes Ostrow Mazowiecka an ideal destination for travelers seeking both warm and cool experiences.

September Weather in Ostrow Mazowiecka: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ostrow Mazowiecka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ostrow Mazowiecka, September typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (85°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec303238475667676658504134
Data source: Temperature data for Ostrow Mazowiecka 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 Ostrow Mazowiecka

In Ostrow Mazowiecka in September, the precipitation amount is 70 mm (2.8 in) over the course of 12 days.

September Precipitation Trends in Ostrow Mazowiecka

The chart displays monthly precipitation patterns in Ostrow Mazowiecka, 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 Ostrow Mazowiecka, September typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec424339408073838170683453
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ostrow Mazowiecka

In Ostrow Mazowiecka in September humidity is 71%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace, making it essential for travelers to pack light, breathable clothing and stay hydrated while exploring the sights.

September Average Humidity in Ostrow Mazowiecka

This chart illustrates the average monthly humidity levels in Ostrow Mazowiecka, 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 Ostrow Mazowiecka 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 Ostrow Mazowiecka

In Ostrow Mazowiecka 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 Ostrow Mazowiecka.

Maximum UV Index Levels in Ostrow Mazowiecka for September

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

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

This table compares monthly weather conditions in Ostrow Mazowiecka, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)42 mm (1.7 inches)92%low
February Weather0°C (32°F)43 mm (1.7 inches)90%low
March Weather3°C (38°F)39 mm (1.6 inches)87%moderate
April Weather8°C (47°F)40 mm (1.6 inches)76%moderate
May Weather13°C (56°F)80 mm (3.2 inches)58%high
June Weather19°C (67°F)73 mm (2.9 inches)56%high
July Weather19°C (67°F)83 mm (3.3 inches)59%very high
August Weather19°C (67°F)81 mm (3.2 inches)60%high
September Weather14°C (58°F)70 mm (2.8 inches)71%moderate
October Weather10°C (50°F)68 mm (2.7 inches)86%moderate
November Weather5°C (41°F)34 mm (1.3 inches)90%low
December Weather1°C (34°F)53 mm (2.1 inches)93%low

Compare Ostrow Mazowiecka's Climate with Cities Worldwide