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September Weather in Radcliff, United States

Last updated: June 24, 2025

In September, the average temperature in Radcliff, United States is a comfortable 22°C (72°F). However, temperatures can vary significantly, ranging from a cool 8°C (47°F) at night to a scorching 36°C (97°F) during the day. Be prepared for occasional rain, as 123 mm (4.8 in) of precipitation is expected over 8 days. Don't forget to stay hydrated; the average humidity level is around 71%!

September Temperature in Radcliff

In September in Radcliff, the average temperature is 22°C (72°F), with maximums reaching 36°C (97°F) and minimums dropping as low as 8°C (47°F). This weather makes it an ideal time for outdoor activities and exploring the local attractions while enjoying comfortable temperatures.

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

The chart illustrates September temperature patterns in Radcliff, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Radcliff, September typically has an average temperature of 22°C (72°F), with highs reaching up to 36°C (97°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec364149566875797672614642
Data source: Temperature data for Radcliff 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 Radcliff

In Radcliff in September, the precipitation amount is 123 mm (4.8 in) distributed over 8 days.

September Precipitation Trends in Radcliff

The chart displays monthly precipitation patterns in Radcliff, 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 Radcliff, September typically receives around 123 mm (4.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec9514513514413815011410012311390110
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Radcliff

In Radcliff in September humidity is 71%. With an average temperature of 22°C (72°F), this humidity feels like the air is thick and slightly stifling, making outdoor activities require frequent breaks to stay hydrated and cool.

September Average Humidity in Radcliff

This chart illustrates the average monthly humidity levels in Radcliff, 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 Radcliff is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Radcliff

In Radcliff in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Radcliff.

Maximum UV Index Levels in Radcliff for September

The chart shows the monthly maximum UV Index (UVI) for Radcliff 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 Radcliff typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Radcliff 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 Radcliff Compares to Other Months

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

This table compares monthly weather conditions in Radcliff, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)94 mm (3.7 inches)87%moderate
February Weather5°C (41°F)145 mm (5.7 inches)86%high
March Weather9°C (49°F)135 mm (5.3 inches)86%high
April Weather14°C (57°F)144 mm (5.7 inches)82%very high
May Weather20°C (68°F)138 mm (5.4 inches)82%very high
June Weather24°C (75°F)150 mm (5.9 inches)83%extreme
July Weather26°C (79°F)114 mm (4.5 inches)80%extreme
August Weather25°C (77°F)100 mm (3.9 inches)74%very high
September Weather22°C (72°F)123 mm (4.8 inches)71%very high
October Weather16°C (61°F)112 mm (4.4 inches)78%high
November Weather8°C (46°F)90 mm (3.5 inches)88%moderate
December Weather5°C (42°F)109 mm (4.3 inches)88%moderate

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