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September Weather in Memphis, United States

Last updated: June 24, 2025

In September, the average temperature in Memphis, United States reaches a comfortable 21°C (70°F). However, it can vary significantly, with minimums of 6°C (43°F) and maximums soaring to 34°C (94°F). Expect an average precipitation of 114 mm (4.5 in) over 7 days, coupled with a humidity level of 78%, making it a uniquely warm and inviting time of year.

September Temperature in Memphis

In September in Memphis, the average temperature is 21°C (70°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 6°C (43°F). This varied climate makes it an ideal destination for travelers looking to experience a mix of warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Memphis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Memphis, September typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (94°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec262842516475797570554034
Data source: Temperature data for Memphis 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 Memphis

In Memphis in September, the total precipitation amount is 114 mm (4.5 in) over the course of 7 days.

September Precipitation Trends in Memphis

The chart displays monthly precipitation patterns in Memphis, 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 Memphis, September typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec5454998415712382811141245038
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Memphis

In Memphis in September, humidity is 78%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can leave travelers feeling sticky and slightly fatigued, making it important to stay hydrated and take frequent breaks from outdoor activities.

September Average Humidity in Memphis

This chart illustrates the average monthly humidity levels in Memphis, 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 Memphis is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%81%81%82%78%81%79%77%78%79%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Memphis

In Memphis 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 Memphis.

Maximum UV Index Levels in Memphis for September

The chart shows the monthly maximum UV Index (UVI) for Memphis 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 Memphis typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111108642
Data source: Memphis 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 Memphis Compares to Other Months

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

This table compares monthly weather conditions in Memphis, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)54 mm (2.1 inches)81%moderate
February Weather-2°C (29°F)54 mm (2.1 inches)81%moderate
March Weather6°C (42°F)99 mm (3.9 inches)81%high
April Weather11°C (51°F)84 mm (3.3 inches)82%very high
May Weather18°C (64°F)157 mm (6.2 inches)78%very high
June Weather24°C (75°F)123 mm (4.8 inches)81%extreme
July Weather26°C (79°F)82 mm (3.2 inches)79%extreme
August Weather24°C (75°F)81 mm (3.2 inches)77%very high
September Weather21°C (70°F)114 mm (4.5 inches)78%very high
October Weather13°C (55°F)124 mm (4.9 inches)78%high
November Weather5°C (41°F)50 mm (2.0 inches)87%moderate
December Weather1°C (34°F)38 mm (1.5 inches)84%low

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