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September Weather in Klwow, Poland

Last updated: August 27, 2025

In September, the average temperature in Klwow, Poland is a mild 15°C (59°F), with a minimum dipping to 1°C (35°F) and peaking at a warm 30°C (87°F). Expect about 83 mm (3.3 in) of precipitation spread over 11 days, contributing to an average humidity of 68%.

September Temperature in Klwow

In September in Klwow, the average temperature is 15°C (59°F), with maximums reaching 30°C (87°F) and minimums diving as low as 1°C (35°F). This makes it a great time for travelers to experience a diverse range of weather, so packing layers is advisable.

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

The chart illustrates September temperature patterns in Klwow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Klwow, September typically has an average temperature of 15°C (59°F), with highs reaching up to 30°C (87°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec313339485667676759514235
Data source: Temperature data for Klwow 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 Klwow

In Klwow in September, the precipitation amount is 83 mm (3.3 in) over the course of 11 days.

September Precipitation Trends in Klwow

The chart displays monthly precipitation patterns in Klwow, 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 Klwow, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec404641468369839083673450
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Klwow

In Klwow in September, humidity is 68%. With an average temperature of 15°C (59°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls and sightseeing, but travelers should be prepared for occasional discomfort as the mugginess can dampen outdoor activities.

September Average Humidity in Klwow

This chart illustrates the average monthly humidity levels in Klwow, 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 Klwow is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%76%58%56%56%55%68%84%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Klwow

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

Maximum UV Index Levels in Klwow for September

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

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

This table compares monthly weather conditions in Klwow, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (31°F)40 mm (1.6 inches)91%low
February Weather1°C (33°F)46 mm (1.8 inches)89%low
March Weather4°C (39°F)41 mm (1.6 inches)86%moderate
April Weather9°C (48°F)46 mm (1.8 inches)76%moderate
May Weather14°C (57°F)83 mm (3.3 inches)58%high
June Weather19°C (67°F)69 mm (2.7 inches)56%very high
July Weather20°C (68°F)83 mm (3.3 inches)56%very high
August Weather20°C (68°F)90 mm (3.6 inches)55%high
September Weather15°C (59°F)83 mm (3.3 inches)68%high
October Weather10°C (51°F)67 mm (2.7 inches)84%moderate
November Weather5°C (42°F)34 mm (1.3 inches)89%low
December Weather1°C (35°F)50 mm (2.0 inches)91%low

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