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September Weather in Slesin, Poland

Last updated: August 27, 2025

In September, the average temperature in Slesin, Poland hovers around 15°C (60°F). Visitors can expect a minimum of 2°C (36°F) and a maximum that peaks at 34°C (94°F). The region experiences approximately 71 mm (2.8 in) of precipitation over 9 days, accompanied by a 75% average humidity level, creating a vibrant yet refreshing atmosphere.

September Temperature in Slesin

In September in Slesin, the average temperature is 15°C (60°F). Maximum temperatures can reach 34°C (94°F), while minimum temperatures can drop as low as 2°C (36°F). Be prepared for a wide range of temperatures to make the most of your travel experience.

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

The chart illustrates September temperature patterns in Slesin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Slesin, September typically has an average temperature of 15°C (60°F), with highs reaching up to 34°C (94°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec333439485767686859514335
Data source: Temperature data for Slesin 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 Slesin

In Slesin in September, the precipitation amount is 71 mm (2.8 in) spread over 9 days.

September Precipitation Trends in Slesin

The chart displays monthly precipitation patterns in Slesin, 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 Slesin, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec414439397579767071603446
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Slesin

In Slesin in September, humidity is 75%. With an average temperature of 15°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities slightly uncomfortable and requiring extra hydration while exploring the sights.

September Average Humidity in Slesin

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

In Slesin 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 Slesin, you can refer to this Hourly UV Index in Slesin.

Maximum UV Index Levels in Slesin for September

The chart shows the monthly maximum UV Index (UVI) for Slesin 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 Slesin typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876321
Data source: Slesin 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 Slesin Compares to Other Months

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

This table compares monthly weather conditions in Slesin, 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 Weather1°C (35°F)44 mm (1.7 inches)90%low
March Weather4°C (40°F)39 mm (1.5 inches)87%moderate
April Weather9°C (48°F)39 mm (1.5 inches)79%moderate
May Weather14°C (57°F)75 mm (2.9 inches)63%high
June Weather20°C (68°F)79 mm (3.1 inches)61%very high
July Weather20°C (68°F)76 mm (3.0 inches)63%very high
August Weather20°C (69°F)70 mm (2.8 inches)65%high
September Weather15°C (60°F)71 mm (2.8 inches)75%high
October Weather11°C (52°F)60 mm (2.4 inches)85%moderate
November Weather6°C (43°F)34 mm (1.4 inches)90%low
December Weather2°C (36°F)46 mm (1.8 inches)93%low

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