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September Weather in Tinley Park, United States

Last updated: June 24, 2025

In September, the average temperature in Tinley Park, United States is a pleasant 20°C (68°F). However, be prepared for temperature variations, as it can dip to a cool 4°C (39°F) or soar to a warm 34°C (94°F). Expect around 80 mm (3.1 in) of precipitation spread over 9 days, and a relatively high average humidity of 80%.

September Temperature in Tinley Park

In September in Tinley Park, the average temperature is 20°C (68°F). Maximum temperatures can reach 34°C (94°F), while minimums can dip as low as 4°C (39°F). It's a great time to visit for a mix of warm days and cooler evenings, perfect for outdoor adventures and exploration.

September Weather in Tinley Park: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Tinley Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tinley Park, September typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (94°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec272840496172757368554034
Data source: Temperature data for Tinley Park 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 Tinley Park

In Tinley Park in September, the precipitation amount is 80 mm (3.1 in) spread over 9 days.

September Precipitation Trends in Tinley Park

The chart displays monthly precipitation patterns in Tinley Park, 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 Tinley Park, September typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec66699612216314311492801396357
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tinley Park

In Tinley Park in September, humidity is 80%. With an average temperature of 20°C (68°F), this humidity feels like traveling through a warm, dense blanket that clings to your skin, making you feel both sticky and lethargic as you explore the sights.

September Average Humidity in Tinley Park

This chart illustrates the average monthly humidity levels in Tinley Park, 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 Tinley Park is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tinley Park

In Tinley Park in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Tinley Park.

Maximum UV Index Levels in Tinley Park for September

The chart shows the monthly maximum UV Index (UVI) for Tinley Park 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 Tinley Park typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Tinley Park 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 Tinley Park Compares to Other Months

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

This table compares monthly weather conditions in Tinley Park, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)66 mm (2.6 inches)82%moderate
February Weather-2°C (29°F)69 mm (2.7 inches)83%moderate
March Weather4°C (40°F)96 mm (3.8 inches)84%high
April Weather9°C (49°F)122 mm (4.8 inches)85%very high
May Weather16°C (61°F)163 mm (6.4 inches)79%very high
June Weather22°C (72°F)143 mm (5.6 inches)82%very high
July Weather24°C (76°F)114 mm (4.5 inches)80%very high
August Weather23°C (73°F)92 mm (3.6 inches)81%very high
September Weather20°C (68°F)80 mm (3.1 inches)80%very high
October Weather13°C (55°F)139 mm (5.5 inches)82%high
November Weather4°C (40°F)63 mm (2.5 inches)88%moderate
December Weather1°C (34°F)57 mm (2.2 inches)84%low

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