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September Weather in Jaslo, Poland

Last updated: August 27, 2025

In September, the average temperature in Jaslo, Poland hovers around 15°C (59°F). Expect temperatures to range from a chilly 2°C (35°F) to a warm 30°C (86°F). During this month, you can anticipate around 90 mm (3.6 in) of precipitation spread over 12 days, contributing to an average humidity of 69%. Stay prepared for a blend of mild and occasionally wet weather!

September Temperature in Jaslo

In September in Jaslo, the average temperature is 15°C (59°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as 2°C (35°F). This variability makes it advisable for travelers to pack layers to comfortably accommodate both warm afternoons and chilly evenings.

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

The chart illustrates September temperature patterns in Jaslo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jaslo, September typically has an average temperature of 15°C (59°F), with highs reaching up to 30°C (86°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec293339485666676758504234
Data source: Temperature data for Jaslo 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 Jaslo

In Jaslo in September, the precipitation amount is 90 mm (3.6 in) spread over 12 days.

September Precipitation Trends in Jaslo

The chart displays monthly precipitation patterns in Jaslo, 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 Jaslo, September typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec466447611079010510491805873
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jaslo

In Jaslo 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 Jaslo

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

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

Maximum UV Index Levels in Jaslo for September

The chart shows the monthly maximum UV Index (UVI) for Jaslo 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 Jaslo typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235678876421
Data source: Jaslo 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 Jaslo Compares to Other Months

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

This table compares monthly weather conditions in Jaslo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (30°F)46 mm (1.8 inches)91%low
February Weather1°C (33°F)64 mm (2.5 inches)88%moderate
March Weather4°C (39°F)47 mm (1.9 inches)86%moderate
April Weather9°C (48°F)61 mm (2.4 inches)77%high
May Weather14°C (57°F)107 mm (4.2 inches)69%high
June Weather19°C (66°F)90 mm (3.6 inches)69%very high
July Weather19°C (67°F)105 mm (4.1 inches)63%very high
August Weather19°C (67°F)104 mm (4.1 inches)59%high
September Weather15°C (59°F)90 mm (3.6 inches)69%high
October Weather10°C (51°F)80 mm (3.1 inches)85%moderate
November Weather5°C (42°F)58 mm (2.3 inches)90%low
December Weather1°C (34°F)73 mm (2.9 inches)91%low

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