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September Weather in Augusta, United States

Last updated: June 24, 2025

In Augusta, United States, the average temperature in September hovers around 21°C (71°F). Expect a minimum of 7°C (45°F) and a maximum of 35°C (96°F), creating a delightful range of conditions. With 115 mm (4.5 in) of precipitation spread over 8 days, a little rain can be expected. On top of that, the air carries an average humidity of 73%, adding to the local atmosphere.

September Temperature in Augusta

In September in Augusta, the average temperature is 21°C (71°F), with maximums reaching up to 35°C (96°F) and minimums dropping as low as 7°C (45°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while experiencing comfortable weather conditions.

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

The chart illustrates September temperature patterns in Augusta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Augusta, September typically has an average temperature of 21°C (71°F), with highs reaching up to 35°C (96°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec343846556673777570594439
Data source: Temperature data for Augusta 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 Augusta

In Augusta in September, the precipitation amount is 115 mm (4.5 in) over the course of 8 days.

September Precipitation Trends in Augusta

The chart displays monthly precipitation patterns in Augusta, 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 Augusta, September typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec891291281401311731219211510592123
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Augusta

In Augusta in September humidity is 73%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities a bit uncomfortable, but with proper hydration and breaks in the shade, it’s still manageable for traveling.

September Average Humidity in Augusta

This chart illustrates the average monthly humidity levels in Augusta, 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 Augusta is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Augusta

In Augusta 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 Augusta.

Maximum UV Index Levels in Augusta for September

The chart shows the monthly maximum UV Index (UVI) for Augusta 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 Augusta typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098643
Data source: Augusta 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 Augusta Compares to Other Months

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

This table compares monthly weather conditions in Augusta, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)89 mm (3.5 inches)88%moderate
February Weather4°C (39°F)129 mm (5.1 inches)88%moderate
March Weather8°C (46°F)128 mm (5.0 inches)87%high
April Weather13°C (55°F)140 mm (5.5 inches)85%very high
May Weather19°C (66°F)131 mm (5.2 inches)81%very high
June Weather23°C (73°F)173 mm (6.8 inches)82%very high
July Weather25°C (77°F)121 mm (4.8 inches)81%very high
August Weather24°C (75°F)92 mm (3.6 inches)73%very high
September Weather21°C (71°F)115 mm (4.5 inches)73%very high
October Weather15°C (60°F)105 mm (4.1 inches)78%high
November Weather7°C (45°F)92 mm (3.6 inches)89%moderate
December Weather4°C (40°F)123 mm (4.8 inches)87%moderate

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