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September Weather in Slater-Marietta, United States

Last updated: June 24, 2025

In Slater-Marietta, United States, the average temperature in September is a comfortable 22°C (73°F). You can expect a range that dips to a minimum of 8°C (47°F) and can soar up to 34°C (94°F). During this month, precipitation averages around 147 mm (5.8 in), spread over 9 days, while the average humidity lingers at 76%, creating a distinctive experience.

September Temperature in Slater-Marietta

In September in Slater-Marietta, the average temperature is 22°C (73°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 8°C (47°F). This is an ideal time for travelers looking to enjoy a warm climate while still having cooler evenings to explore the local sights comfortably.

September Weather in Slater-Marietta: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Slater-Marietta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Slater-Marietta, September typically has an average temperature of 22°C (73°F), with highs reaching up to 34°C (94°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec424852606874787772635045
Data source: Temperature data for Slater-Marietta 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 Slater-Marietta

In Slater-Marietta in September, the precipitation amount totals 147 mm (5.8 in) over a span of 9 days.

September Precipitation Trends in Slater-Marietta

The chart displays monthly precipitation patterns in Slater-Marietta, 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 Slater-Marietta, September typically receives around 147 mm (5.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec1131591111371348886115147158101147
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Slater-Marietta

In Slater-Marietta in September, humidity is 76%. With an average temperature of 22°C (73°F), this humidity feels like a warm embrace that envelops you, making travel both refreshing and slightly steamy, as the air clings warmly to your skin.

September Average Humidity in Slater-Marietta

This chart illustrates the average monthly humidity levels in Slater-Marietta, 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 Slater-Marietta is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Slater-Marietta

In Slater-Marietta 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 Slater-Marietta.

Maximum UV Index Levels in Slater-Marietta for September

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

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

This table compares monthly weather conditions in Slater-Marietta, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)113 mm (4.5 inches)86%moderate
February Weather9°C (48°F)159 mm (6.3 inches)86%high
March Weather11°C (53°F)111 mm (4.4 inches)86%very high
April Weather15°C (60°F)137 mm (5.4 inches)82%very high
May Weather20°C (69°F)134 mm (5.3 inches)85%extreme
June Weather23°C (74°F)88 mm (3.4 inches)85%extreme
July Weather25°C (78°F)86 mm (3.4 inches)83%extreme
August Weather25°C (77°F)115 mm (4.5 inches)76%very high
September Weather22°C (73°F)147 mm (5.8 inches)76%very high
October Weather17°C (63°F)158 mm (6.2 inches)80%very high
November Weather10°C (50°F)101 mm (4.0 inches)88%high
December Weather7°C (46°F)147 mm (5.8 inches)88%moderate

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