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September Weather in Goodlettsville, United States

Last updated: June 24, 2025

In Goodlettsville, United States, the average temperature in September hovers around 23°C (74°F), creating a pleasant climate. Expect minimum lows of 9°C (48°F) and potential highs reaching 37°C (98°F). Rainfall is relatively common, with a precipitation amount of 130 mm (5.1 in) spread over about 10 days. The average humidity level sits at a comfortable 71%, adding to the overall ambiance of the month.

September Temperature in Goodlettsville

In September in Goodlettsville, the average temperature is 23°C (74°F), with maximums reaching up to 37°C (98°F) and minimums dropping as low as 9°C (48°F). Be sure to pack both lightweight clothing for the warm days and a light jacket for the cooler evenings!

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

The chart illustrates September temperature patterns in Goodlettsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Goodlettsville, September typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (98°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec404552597077807874634845
Data source: Temperature data for Goodlettsville 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 Goodlettsville

In Goodlettsville in September, the precipitation amount is 130 mm (5.1 in) over a period of 10 days.

September Precipitation Trends in Goodlettsville

The chart displays monthly precipitation patterns in Goodlettsville, 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 Goodlettsville, September typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec10218016415012213513813213014182145
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Goodlettsville

In Goodlettsville in September, humidity is 71%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping embrace that can make outdoor activities feel sticky, but if you're well-hydrated and take breaks in the shade, it offers a pleasant tropical ambiance perfect for exploration.

September Average Humidity in Goodlettsville

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

In Goodlettsville 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 Goodlettsville.

Maximum UV Index Levels in Goodlettsville for September

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

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

This table compares monthly weather conditions in Goodlettsville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)102 mm (4.0 inches)87%moderate
February Weather7°C (45°F)180 mm (7.1 inches)86%high
March Weather11°C (52°F)164 mm (6.4 inches)86%high
April Weather15°C (59°F)150 mm (5.9 inches)82%very high
May Weather21°C (70°F)122 mm (4.8 inches)82%very high
June Weather25°C (77°F)135 mm (5.3 inches)83%extreme
July Weather27°C (80°F)138 mm (5.4 inches)80%extreme
August Weather26°C (78°F)131 mm (5.2 inches)74%very high
September Weather23°C (74°F)130 mm (5.1 inches)71%very high
October Weather17°C (63°F)141 mm (5.5 inches)78%high
November Weather9°C (48°F)82 mm (3.2 inches)88%moderate
December Weather7°C (45°F)145 mm (5.7 inches)88%moderate

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