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September Weather in Jasien, Poland

Last updated: August 27, 2025

In Jasien, Poland, the average temperature in September hovers around 15°C (59°F). Expect a temperature range from a brisk 2°C (37°F) to a warm 31°C (88°F). During this month, you'll likely encounter approximately 100 mm (3.9 in) of precipitation spread over 12 days, contributing to a relatively high average humidity of 69%. Prepare for a mix of weather as you enjoy your time in this vibrant location!

September Temperature in Jasien

In September in Jasien, the average temperature is 15°C (59°F). Maximum temperatures can reach 31°C (88°F), while minimum temperatures can drop as low as 2°C (37°F). Be prepared for a wide range of temperatures and pack accordingly for your trip.

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

The chart illustrates September temperature patterns in Jasien, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jasien, September typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec313540495767686859514235
Data source: Temperature data for Jasien 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 Jasien

In Jasien in September, the precipitation amount is 100 mm (3.9 in) over the course of 12 days.

September Precipitation Trends in Jasien

The chart displays monthly precipitation patterns in Jasien, 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 Jasien, September typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec3856446410179103123100804958
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jasien

In Jasien in September humidity is 69%. With an average temperature of 15°C (59°F), this humidity feels like a mild blanket wrapping around you, making it slightly uncomfortable for traveling; you'll likely find yourself seeking shade and refreshing drinks to stay cool as you explore.

September Average Humidity in Jasien

This chart illustrates the average monthly humidity levels in Jasien, 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 Jasien is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%88%86%77%69%69%63%59%69%85%90%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Jasien

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

Maximum UV Index Levels in Jasien for September

The chart shows the monthly maximum UV Index (UVI) for Jasien 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 Jasien typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578876421
Data source: Jasien 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 Jasien Compares to Other Months

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

This table compares monthly weather conditions in Jasien, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)38 mm (1.5 inches)91%low
February Weather2°C (35°F)56 mm (2.2 inches)88%low
March Weather4°C (40°F)44 mm (1.7 inches)86%moderate
April Weather9°C (49°F)64 mm (2.5 inches)77%moderate
May Weather14°C (57°F)101 mm (4.0 inches)69%high
June Weather19°C (67°F)79 mm (3.1 inches)69%very high
July Weather20°C (68°F)103 mm (4.0 inches)63%very high
August Weather20°C (68°F)123 mm (4.8 inches)59%high
September Weather15°C (59°F)100 mm (3.9 inches)69%high
October Weather11°C (51°F)80 mm (3.2 inches)85%moderate
November Weather6°C (42°F)49 mm (1.9 inches)90%low
December Weather2°C (35°F)58 mm (2.3 inches)91%low

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