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September Weather in Olesno, Poland

Last updated: August 27, 2025

In {Olesno}, {Poland}, the average temperature in {September} hovers around 15°C (60°F). Expect a range from a chilly 1°C (34°F) to a warm 33°C (92°F). Rainfall is moderate, with about 83 mm (3.3 in) of precipitation spread over 10 days. Humidity levels are typically around 72%, adding a touch of moisture to the air.

September Temperature in Olesno

In September in Olesno, the average temperature is 15°C (60°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 1°C (34°F). This makes it an ideal time for travelers to experience a diverse range of weather conditions, so be sure to pack for both warm and cool temperatures.

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

The chart illustrates September temperature patterns in Olesno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olesno, September typically has an average temperature of 15°C (60°F), with highs reaching up to 33°C (92°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec313440485768686959514335
Data source: Temperature data for Olesno 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 Olesno

In Olesno in September, the total precipitation amount is 83 mm (3.3 in) over a span of 10 days.

September Precipitation Trends in Olesno

The chart displays monthly precipitation patterns in Olesno, 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 Olesno, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec414843498278748283683955
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Olesno

In Olesno in September humidity is 72%. With an average temperature of 15°C (60°F), this humidity feels like a warm embrace, creating a slightly muggy atmosphere that can make strolling around a bit sticky. Travelers might find themselves longing for a refreshing breeze, and it’s advisable to stay hydrated while exploring local sights.

September Average Humidity in Olesno

This chart illustrates the average monthly humidity levels in Olesno, 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 Olesno is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%79%65%66%67%67%72%83%90%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Olesno

In Olesno in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Olesno, you can refer to this Hourly UV Index in Olesno.

Maximum UV Index Levels in Olesno for September

The chart shows the monthly maximum UV Index (UVI) for Olesno 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 Olesno typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124577876321
Data source: Olesno 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 Olesno Compares to Other Months

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

This table compares monthly weather conditions in Olesno, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)41 mm (1.6 inches)90%low
February Weather1°C (34°F)48 mm (1.9 inches)88%low
March Weather4°C (40°F)43 mm (1.7 inches)86%moderate
April Weather9°C (49°F)49 mm (1.9 inches)79%moderate
May Weather14°C (57°F)82 mm (3.2 inches)65%high
June Weather20°C (68°F)78 mm (3.1 inches)66%high
July Weather20°C (68°F)74 mm (2.9 inches)67%very high
August Weather20°C (69°F)82 mm (3.2 inches)67%high
September Weather15°C (60°F)83 mm (3.3 inches)72%high
October Weather11°C (52°F)68 mm (2.7 inches)83%moderate
November Weather6°C (43°F)39 mm (1.5 inches)90%low
December Weather2°C (35°F)55 mm (2.1 inches)92%low

Compare Olesno's Climate with Cities Worldwide