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September Weather in Osiek, Poland

Last updated: August 27, 2025

In Osiek, Poland, the average temperature in September hovers around 14°C (58°F), with fluctuations that see it dip to a minimum of 2°C (36°F) and soar to a maximum of 31°C (88°F). During this month, expect about 73 mm (2.9 in) of precipitation spread over 10 days, contributing to an average humidity of 75%. 🌦️

September Temperature in Osiek

In September, in Osiek, the average temperature is 14°C (58°F). The maximum can reach 31°C (88°F), while the minimum can be as low as 2°C (36°F). This variation in temperature makes Osiek a versatile destination for travelers, offering both warm and cool experiences.

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

The chart illustrates September temperature patterns in Osiek, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Osiek, September typically has an average temperature of 14°C (58°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec323338465464656558504235
Data source: Temperature data for Osiek 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 Osiek

In Osiek in September, the precipitation amount is 73 mm (2.9 in) over the course of 10 days.

September Precipitation Trends in Osiek

The chart displays monthly precipitation patterns in Osiek, 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 Osiek, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec4237403881811046473623846
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Osiek

In Osiek 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 Osiek

This chart illustrates the average monthly humidity levels in Osiek, 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 Osiek 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 Osiek

In Osiek 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 Osiek.

Maximum UV Index Levels in Osiek for September

The chart shows the monthly maximum UV Index (UVI) for Osiek 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 Osiek typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568865321
Data source: Osiek 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 Osiek Compares to Other Months

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

This table compares monthly weather conditions in Osiek, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)41 mm (1.6 inches)91%low
February Weather0°C (33°F)36 mm (1.4 inches)90%low
March Weather3°C (38°F)40 mm (1.6 inches)87%moderate
April Weather8°C (46°F)38 mm (1.5 inches)79%moderate
May Weather12°C (54°F)81 mm (3.2 inches)63%high
June Weather18°C (64°F)81 mm (3.2 inches)61%very high
July Weather18°C (65°F)104 mm (4.1 inches)63%very high
August Weather19°C (66°F)64 mm (2.5 inches)65%high
September Weather14°C (58°F)73 mm (2.9 inches)75%moderate
October Weather10°C (50°F)62 mm (2.4 inches)85%moderate
November Weather6°C (42°F)38 mm (1.5 inches)90%low
December Weather1°C (35°F)46 mm (1.8 inches)93%low

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