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September Weather in Kalisz, Poland

Last updated: August 27, 2025

In September, the average temperature in Kalisz, Poland hovers around 15°C (60°F), with ranges from a cool 2°C (36°F) to a warm 33°C (92°F). Expect 68 mm (2.7 in) of precipitation over 10 days, complemented by an average humidity of 72%. Whether you're looking for a refreshing escape or just a brief visit, this month's climate offers a unique experience!

September Temperature in Kalisz

In September in Kalisz, 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 Kalisz: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kalisz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kalisz, 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).
JanFebMarAprMayJunJulAugSepOctNovDec333540495768686959524336
Data source: Temperature data for Kalisz 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 Kalisz

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

September Precipitation Trends in Kalisz

The chart displays monthly precipitation patterns in Kalisz, 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 Kalisz, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec424640397782777668613547
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kalisz

In Kalisz 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 Kalisz

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

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

Maximum UV Index Levels in Kalisz for September

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

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

This table compares monthly weather conditions in Kalisz, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)42 mm (1.6 inches)90%low
February Weather1°C (35°F)46 mm (1.8 inches)88%low
March Weather4°C (40°F)40 mm (1.6 inches)86%moderate
April Weather9°C (49°F)39 mm (1.5 inches)79%moderate
May Weather14°C (57°F)77 mm (3.0 inches)65%high
June Weather20°C (68°F)82 mm (3.2 inches)66%very high
July Weather20°C (68°F)77 mm (3.0 inches)67%very high
August Weather20°C (69°F)76 mm (3.0 inches)67%high
September Weather15°C (60°F)68 mm (2.7 inches)72%high
October Weather11°C (52°F)61 mm (2.4 inches)83%moderate
November Weather6°C (43°F)35 mm (1.4 inches)90%low
December Weather2°C (36°F)47 mm (1.9 inches)92%low

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