September Weather in Memphis, United States

Last updated: June 24, 2025

In Memphis, United States, the average temperature in September is a pleasant 18°C (65°F). However, be prepared for fluctuations, as temperatures can dip to a chilly 1°C (34°F) or soar to a sizzling 34°C (93°F). During this month, expect 79 mm (3.1 in) of precipitation spread across approximately 10 days, contributing to an average humidity of around 80%.

September Temperature in Memphis

In September in Memphis, the average temperature is 18°C (65°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 1°C (34°F). This temperature range makes Memphis an ideal destination for travelers looking to enjoy a variety of outdoor activities.

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 18°C (65°F), with highs reaching up to 34°C (93°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec262735455868737164533932
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 precipitation amount is 79 mm (3.1 in) over a span of 10 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 79 mm (3.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec61666493104988386791066953
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 80%. With an average temperature of 18°C (65°F), this humidity feels like wandering through a warm, damp blanket, making every step slightly heavy and resulting in a constant sheen of sweat, which can be both refreshing and exhausting for travelers.

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 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
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 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check 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 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
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)61 mm (2.4 inches)88%low
February Weather-3°C (27°F)66 mm (2.6 inches)87%moderate
March Weather2°C (36°F)64 mm (2.5 inches)85%moderate
April Weather7°C (46°F)93 mm (3.7 inches)86%very high
May Weather14°C (58°F)103 mm (4.1 inches)80%very high
June Weather20°C (69°F)98 mm (3.9 inches)80%very high
July Weather23°C (74°F)83 mm (3.3 inches)80%very high
August Weather22°C (71°F)86 mm (3.4 inches)80%very high
September Weather18°C (65°F)79 mm (3.1 inches)80%high
October Weather12°C (53°F)106 mm (4.2 inches)84%moderate
November Weather4°C (39°F)69 mm (2.7 inches)89%moderate
December Weather0°C (32°F)53 mm (2.1 inches)86%low

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