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September Weather in Chattahoochee Hills, United States

Last updated: June 24, 2025

In Chattahoochee Hills, United States, the average temperature in September hovers around 24°C (75°F), providing a comfortable climate for visitors. However, temperatures can vary significantly, with a minimum of 10°C (51°F) and a maximum soaring to 36°C (97°F). Expect about 106 mm (4.2 in) of precipitation spread over 8 days, contributing to the region's average humidity of 82%. Prepare accordingly to fully enjoy your time in this vibrant locale!

September Temperature in Chattahoochee Hills

In September in Chattahoochee Hills, the average temperature is 24°C (75°F). The maximum can reach 36°C (97°F), and the minimum can be as low as 10°C (51°F). This makes Chattahoochee Hills an ideal destination for travelers seeking warm weather during the day while still enjoying cooler evenings.

September Weather in Chattahoochee Hills: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Chattahoochee Hills, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chattahoochee Hills, September typically has an average temperature of 24°C (75°F), with highs reaching up to 36°C (97°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec465257627176797875665248
Data source: Temperature data for Chattahoochee Hills 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 Chattahoochee Hills

In Chattahoochee Hills in September, the precipitation amount is 106 mm (4.2 in) over a span of 8 days.

September Precipitation Trends in Chattahoochee Hills

The chart displays monthly precipitation patterns in Chattahoochee Hills, 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 Chattahoochee Hills, September typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1061421191229011811313310611580143
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chattahoochee Hills

In Chattahoochee Hills in September, humidity is 82%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel feel sticky and heavy on the skin, often requiring more frequent breaks and hydration.

September Average Humidity in Chattahoochee Hills

This chart illustrates the average monthly humidity levels in Chattahoochee Hills, 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 Chattahoochee Hills is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%81%81%81%83%81%82%78%86%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chattahoochee Hills

In Chattahoochee Hills 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 Chattahoochee Hills.

Maximum UV Index Levels in Chattahoochee Hills for September

The chart shows the monthly maximum UV Index (UVI) for Chattahoochee Hills 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 Chattahoochee Hills typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109864
Data source: Chattahoochee Hills 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 Chattahoochee Hills Compares to Other Months

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

This table compares monthly weather conditions in Chattahoochee Hills, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)106 mm (4.2 inches)86%moderate
February Weather11°C (52°F)142 mm (5.6 inches)84%high
March Weather14°C (57°F)119 mm (4.7 inches)83%very high
April Weather17°C (63°F)122 mm (4.8 inches)81%very high
May Weather22°C (71°F)90 mm (3.5 inches)81%extreme
June Weather25°C (77°F)118 mm (4.6 inches)81%extreme
July Weather26°C (80°F)113 mm (4.4 inches)83%extreme
August Weather26°C (79°F)132 mm (5.2 inches)81%very high
September Weather24°C (75°F)106 mm (4.2 inches)82%very high
October Weather19°C (66°F)115 mm (4.5 inches)78%very high
November Weather11°C (53°F)80 mm (3.2 inches)86%high
December Weather9°C (49°F)142 mm (5.6 inches)89%moderate

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