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September Weather in Lithonia, United States

Last updated: June 24, 2025

In September, the average temperature in Lithonia, United States hovers around 24°C (75°F), offering a pleasant climate. Expect a minimum temperature of 10°C (51°F) and a maximum that can reach up to 36°C (97°F). During this month, anticipate 110 mm (4.3 in) of precipitation over 9 days, accompanied by an average humidity of 82%, creating a lush and inviting atmosphere.

September Temperature in Lithonia

In September in Lithonia, 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 Lithonia an ideal destination for travelers seeking warm weather during the day while still enjoying cooler evenings.

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

The chart illustrates September temperature patterns in Lithonia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lithonia, 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).
JanFebMarAprMayJunJulAugSepOctNovDec465156627176797975665248
Data source: Temperature data for Lithonia 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 Lithonia

In Lithonia in September, the precipitation amount is 110 mm (4.3 in) over the course of 9 days.

September Precipitation Trends in Lithonia

The chart displays monthly precipitation patterns in Lithonia, 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 Lithonia, September typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec10514612412110612611513811012180137
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lithonia

In Lithonia 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 Lithonia

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

In Lithonia 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 Lithonia.

Maximum UV Index Levels in Lithonia for September

The chart shows the monthly maximum UV Index (UVI) for Lithonia 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 Lithonia typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47910111111109864
Data source: Lithonia 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 Lithonia Compares to Other Months

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

This table compares monthly weather conditions in Lithonia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)105 mm (4.1 inches)86%moderate
February Weather11°C (51°F)146 mm (5.7 inches)84%high
March Weather13°C (56°F)124 mm (4.9 inches)83%very high
April Weather17°C (62°F)121 mm (4.7 inches)81%very high
May Weather22°C (71°F)106 mm (4.2 inches)81%extreme
June Weather25°C (77°F)126 mm (5.0 inches)81%extreme
July Weather26°C (80°F)115 mm (4.5 inches)83%extreme
August Weather26°C (79°F)138 mm (5.4 inches)81%very high
September Weather24°C (75°F)110 mm (4.3 inches)82%very high
October Weather19°C (66°F)120 mm (4.7 inches)78%very high
November Weather11°C (53°F)80 mm (3.2 inches)86%high
December Weather9°C (49°F)137 mm (5.4 inches)89%moderate

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