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September Weather in Janowiec, Poland

Last updated: August 27, 2025

In September, the average temperature in Janowiec, Poland hovers around 15°C (59°F). Expect a minimum of 1°C (33°F) and a pleasant maximum of 29°C (85°F). With 81 mm (3.2 in) of precipitation spread over 12 days, you might want to pack an umbrella. The average humidity levels sit comfortably at 68%, making it a moderately humid month overall.

September Temperature in Janowiec

In September in Janowiec, the average temperature is 15°C (59°F), with maximums that can reach 29°C (85°F) and minimums that can be as low as 1°C (33°F). This diverse range of temperatures makes it essential for travelers to pack both light clothing for warm days and warmer layers for chilly evenings.

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

The chart illustrates September temperature patterns in Janowiec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Janowiec, September typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (85°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec303339485767686759504234
Data source: Temperature data for Janowiec 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 Janowiec

In Janowiec in September, the precipitation amount is 81 mm (3.2 in) over a span of 12 days.

September Precipitation Trends in Janowiec

The chart displays monthly precipitation patterns in Janowiec, 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 Janowiec, September typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4048405384689210581693955
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Janowiec

In Janowiec 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 Janowiec

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

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

Maximum UV Index Levels in Janowiec for September

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

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

This table compares monthly weather conditions in Janowiec, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)40 mm (1.6 inches)91%low
February Weather1°C (33°F)48 mm (1.9 inches)89%low
March Weather4°C (39°F)40 mm (1.6 inches)86%moderate
April Weather9°C (48°F)53 mm (2.1 inches)76%moderate
May Weather14°C (57°F)84 mm (3.3 inches)58%high
June Weather20°C (67°F)68 mm (2.7 inches)56%very high
July Weather20°C (68°F)92 mm (3.6 inches)56%very high
August Weather20°C (68°F)105 mm (4.1 inches)55%high
September Weather15°C (59°F)81 mm (3.2 inches)68%high
October Weather10°C (51°F)69 mm (2.7 inches)84%moderate
November Weather5°C (42°F)39 mm (1.5 inches)89%low
December Weather1°C (35°F)55 mm (2.2 inches)91%low

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