nomadseason

September Weather in Koscierzyna, Poland

Last updated: August 27, 2025

In September, the average temperature in Koscierzyna, Poland hovers around 14°C (57°F), making it a pleasant time to explore. Expect temperatures to range from a crisp 2°C (36°F) to a warm 30°C (87°F), providing a diverse climate experience. Additionally, be prepared for 68 mm (2.7 in) of precipitation over about 10 days, contributing to an average humidity of 75%. Dress accordingly to enjoy all that this beautiful destination has to offer!

September Temperature in Koscierzyna

In September in Koscierzyna, the average temperature is 14°C (57°F). Maximums can reach 30°C (87°F) and minimums can be as low as 2°C (36°F). It's a great time to visit Koscierzyna if you enjoy mild weather with the possibility of warm days and cooler nights.

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

The chart illustrates September temperature patterns in Koscierzyna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koscierzyna, September typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (87°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec323237455363646457494134
Data source: Temperature data for Koscierzyna generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Koscierzyna

In Koscierzyna in September, the precipitation amount is 68 mm (2.7 in) over a span of 10 days.

September Precipitation Trends in Koscierzyna

The chart displays monthly precipitation patterns in Koscierzyna, 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 Koscierzyna, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec4840463869691066668664049
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Koscierzyna

In Koscierzyna in September, humidity is 75%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket enveloping you, making outdoor activities somewhat uncomfortable and travel a bit sluggish, as the air feels heavy and the heat lingers close to your skin.

September Average Humidity in Koscierzyna

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

In Koscierzyna 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 Koscierzyna.

Maximum UV Index Levels in Koscierzyna for September

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

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

This table compares monthly weather conditions in Koscierzyna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)48 mm (1.9 inches)91%low
February Weather0°C (32°F)40 mm (1.6 inches)90%low
March Weather3°C (37°F)46 mm (1.8 inches)87%moderate
April Weather7°C (45°F)38 mm (1.5 inches)79%moderate
May Weather12°C (53°F)69 mm (2.7 inches)63%high
June Weather17°C (63°F)69 mm (2.7 inches)61%very high
July Weather18°C (64°F)106 mm (4.2 inches)63%very high
August Weather18°C (64°F)66 mm (2.6 inches)65%high
September Weather14°C (57°F)68 mm (2.7 inches)75%moderate
October Weather10°C (50°F)66 mm (2.6 inches)85%moderate
November Weather5°C (41°F)40 mm (1.6 inches)90%low
December Weather1°C (34°F)49 mm (1.9 inches)93%low

Compare Koscierzyna's Climate with Cities Worldwide