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September Weather in Siedlec, Poland

Last updated: August 27, 2025

In Siedlec, Poland, the average temperature in September hovers around 15°C (60°F), with a minimum dipping to 2°C (36°F) and a maximum soaring to 33°C (92°F). Expect 57 mm (2.2 in) of rainfall spread over 9 days, contributing to an average humidity level of 78%.

September Temperature in Siedlec

In September in Siedlec, the average temperature is 15°C (60°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 2°C (36°F). Pack layers to enjoy both warm afternoons and cool evenings while exploring the area.

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

The chart illustrates September temperature patterns in Siedlec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siedlec, 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 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec343540495768686960524337
Data source: Temperature data for Siedlec 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 Siedlec

In Siedlec in September, the total precipitation amount is 57 mm (2.2 in) over the course of 9 days.

September Precipitation Trends in Siedlec

The chart displays monthly precipitation patterns in Siedlec, 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 Siedlec, September typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec484444326247836057593947
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Siedlec

In Siedlec in September, humidity is 78%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp embrace that can make outdoor activities a bit uncomfortable, highlighting the importance of staying hydrated and taking breaks in the shade while exploring.

September Average Humidity in Siedlec

This chart illustrates the average monthly humidity levels in Siedlec, 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 Siedlec is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%81%67%67%67%67%78%84%89%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Siedlec

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

Maximum UV Index Levels in Siedlec for September

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

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

This table compares monthly weather conditions in Siedlec, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)48 mm (1.9 inches)90%low
February Weather2°C (36°F)44 mm (1.7 inches)90%low
March Weather5°C (41°F)44 mm (1.7 inches)87%moderate
April Weather9°C (49°F)32 mm (1.3 inches)80%moderate
May Weather14°C (57°F)62 mm (2.4 inches)67%high
June Weather20°C (68°F)47 mm (1.8 inches)67%very high
July Weather20°C (68°F)83 mm (3.3 inches)67%very high
August Weather20°C (69°F)60 mm (2.4 inches)67%high
September Weather15°C (60°F)57 mm (2.2 inches)78%high
October Weather11°C (52°F)59 mm (2.3 inches)84%moderate
November Weather6°C (43°F)39 mm (1.5 inches)89%low
December Weather3°C (37°F)47 mm (1.8 inches)92%low

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