September Weather in Memphis, United States

Last updated: February 24, 2025

September in Memphis, United States showcases a dynamic range of weather, with maximum temperatures reaching a sizzling 35°C (96°F) and an average of 24°C (76°F). As summer transitions into fall, the nights can cool down to a refreshing 10°C (51°F). The month also brings 86 mm (3.4 in) of rainfall over 7 days, contributing to an overall humidity level of 71%. This balance of warmth and precipitation creates a vibrant atmosphere, perfect for experiencing the rich culture and natural beauty of Memphis.

September Temperature in Memphis

In September, Memphis experiences a delightful transition as summer begins to wane. The temperatures typically range from a comfortable 10°C (51°F) at night to a warm 35°C (96°F) during the day, with an inviting average of 24°C (76°F). This month marks a gradual cooling trend from the sweltering heat of August, but days can still be quite warm, echoing the summer's lingering warmth. As the leaves start to hint at autumn's arrival, September offers a perfect blend of sunny days and cool evenings, making it an ideal time for outdoor activities and enjoying the city's vibrant atmosphere.

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.
JanFebMarAprMayJunJulAugSepOctNovDec424555617278828076645047
Data source: Temperature data for Memphis generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Memphis

In September, Memphis experiences a noticeable decline in rainfall, with only 86 mm (3.4 inches) accumulated over 7 days—the lowest monthly total since April. This dip marks a transition from the summer months, where precipitation tends to be more generous, to the drier fall season. While September's rainfall is relatively light, it still plays a pivotal role in replenishing the local ecosystem as the temperatures begin to cool. Interestingly, this month's precipitation sets the stage for a shift in weather patterns, often leading to more temperate conditions in the coming months. The consistent trend of diminishing rainfall in late summer hints at the arrival of autumn, offering a refreshing change after the humid days of July and August.

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.
JanFebMarAprMayJunJulAugSepOctNovDec1031701601351201181241028611378147
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Memphis

As summer fades, September humidity in Memphis dips to a comfortable 71%, marking a noticeable decline from the sultry August levels of 74%. This decrease reflects a broader trend throughout the year, where the humidity generally remains high in the winter months, peaking at 88% in December, then gradually decreasing until it hits its yearly low in September. Following this transitional month, humidity levels begin to rise again, foreshadowing the heavier, moisture-laden air of fall and winter. This fluctuation creates a dynamic climate, offering Memphians a brief respite before the wetter months roll in again.

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, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%81%81%83%83%81%74%71%76%84%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Memphis

As summer transitions to fall, the UV Index in Memphis remains notably high in September, averaging 9, which places it in the very high exposure category. This slight dip from the peak summer months still calls for caution, as individuals can expect a burn time of just 15 minutes with unprotected skin. Notably, the UV Index trends reveal a gradual descent from an extreme level of 11 in July and June to 10 in August, and then to 9 in September, highlighting a decrease yet still significant sun intensity. As you enjoy the lovely early autumn days, it's essential to stay sun-safe and protect your skin from harmful UV rays. For more information on UV exposure in Memphis, check out Memphis UV Index.

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.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
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.

September Sunshine in Memphis

As summer gives way to autumn, September in Memphis maintains a delightful warmth with 284 hours of sunshine. Although this marks a slight dip from the peak of 345 hours in July, it still offers a generous amount of bright days that transition beautifully into cooler weather. The steady decline in sunlight from June through September hints at the changing seasons, while September's abundant rays invite locals to savor the golden days before they turn into the crispness of fall. This month serves as a perfect bridge, allowing residents and visitors alike to bask in the lingering warmth of summer, even as the vibrant hues of autumn begin to paint the landscape.

Monthly Sunshine Duration in Memphis: September Highlighted

The September sunshine duration represents the total number of hours Memphis experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec142h161h209h260h305h319h345h305h284h255h228h188h
Data source: Memphis September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Memphis During September

In September, Memphis experiences a noteworthy increase in sunny weather, boasting a 60% chance of clear skies. This marks a significant uptick from the summer months, where the sunny likelihood hovered around 51% in both July and August. As the city transitions from the sweltering summer heat to the mild beginnings of fall, the enhanced chances of sunshine signify a delightful change. Notably, September offers one of the higher probabilities of sunshine compared to earlier months like May, which sees only 32% sunny days. This trend underscores September's charm, making it a perfect time to enjoy outdoor activities before the cooler autumn air sets in.

Percentage of Sunny Days in September in Memphis

The chart illustrates the percentage of sunny days in Memphis throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Memphis experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%33%41%53%32%42%51%51%60%52%64%39%
Data source: Memphis September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Memphis in September

As September arrives in Memphis, daylight begins to wane, ushering in a noticeable shift from the sun-kissed days of summer. With approximately 12 hours of daylight, this month marks a gentle decline from the peak of 14 hours experienced in June, July, and August. The transition reflects a broader trend, where longer days start to recede after the height of summer, gradually paving the way for the shorter days of fall and winter. As October approaches, the anticipation of cozy, cooler evenings becomes palpable, reminding residents of the cyclical beauty of the seasons.

Average Daylight Hours in Memphis for September

The chart illustrates the variation in daylight duration in Memphis throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 4m10h 55m11h 59m13h 5m14h 1m14h 28m14h 13m13h 24m12h 20m11h 14m10h 17m9h 49m
Data source: Memphis daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Memphis

As September arrives in Memphis, the city experiences a gentle breeze with an average wind speed of 2.4 m/s (5 mph), mirroring the calm conditions of the preceding summer months. This marks a noticeable dip from the more vigorous winds of spring, where average speeds ranged from 3.2 to 3.6 m/s. The breezy air provides a refreshing contrast to the warmth of late summer, creating an inviting atmosphere for outdoor activities. As the month progresses towards autumn, one can anticipate a gradual uptick in wind speeds in October, signaling a subtle shift in the seasonal dynamics of this vibrant city. The overall trend suggests that while September remains serene, it paves the way for the invigorating winds of fall.

Average September Wind Speed in Memphis

The chart displays monthly wind speed patterns in Memphis, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.43.63.53.23.22.62.32.42.4 m/s3.13.23.7
Data source: Memphis September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Memphis Compares to Other Months

The weather in Memphis changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Memphis and find detailed weather information for every month.

September and January present stark contrasts in weather. In September, temperatures vary from a minimum of 10°C (51°F) to a maximum of 35°C (96°F), with an average of 24°C (76°F). The month experiences a fair amount of humidity at 71% and receives about 86 mm (3.4 in) of precipitation over 7 days. In contrast, January brings much colder temperatures, with a minimum of -18°C (1°F) and an average of just 5°C (42°F), while highs can reach 23°C (73°F). It also sees slightly higher precipitation at 103 mm (4.0 in) over 8 days, accompanied by increased humidity at 84%. For a detailed breakdown of winter weather conditions, you can check Memphis weather in January.

September and February present stark contrasts in weather patterns. In September, temperatures range from a mild 10°C (51°F) at night to a warm 35°C (96°F) during the day, with average highs around 24°C (76°F) and moderate humidity levels at 71%. The month experiences 86 mm (3.4 in) of precipitation over about 7 days, indicating a relatively dry early autumn.

Conversely, February is defined by its cold, with temperatures dipping as low as -18°C (-1°F) and averaging just 7°C (46°F). The maximum temperature reaches a comfortable 26°C (78°F), but the month is much wetter, receiving 170 mm (6.7 in) of precipitation over 14 days, and with humidity levels rising to 83%. For more specific details on February's conditions, you can check Memphis weather in February.

In September, the weather tends to be warmer with average temperatures around 24°C (76°F) and maximums reaching up to 35°C (96°F), while the minimum temperature rarely drops below 10°C (51°F). This month has a moderate level of precipitation at 86 mm (3.4 in), occurring over about 7 days, and the humidity averages around 71%. In contrast, March experiences cooler temperatures, with an average of 13°C (55°F) and maximums of 29°C (84°F). The minimum temperatures can dip as low as -7°C (19°F), making it significantly chillier than September. March also sees increased precipitation at 160 mm (6.3 in) over approximately 14 days, accompanied by slightly higher humidity levels of 81%. For a more detailed understanding of March weather, you can check out Memphis weather in March.

When comparing the weather in September and April, significant differences emerge. September typically showcases warmer temperatures with a minimum of 10°C (51°F) and an average of 24°C (76°F), peaking at 35°C (96°F). In contrast, April starts much cooler, with minimum temperatures dropping to -1°C (30°F) and an average of 16°C (61°F), while the maximum does reach a mild 30°C (87°F). Precipitation is more prevalent in April, with 135 mm (5.3 in) over 11 days compared to September's 86 mm (3.4 in) spread over just 7 days. Additionally, humidity levels are slightly higher in April at 81%, compared to 71% in September. For more insights on April weather, check out Memphis weather in April.

In September, the weather tends to be warmer, with average temperatures reaching up to 24°C (76°F) and maximums hitting 35°C (96°F). In contrast, May experiences cooler temperatures, averaging around 22°C (72°F) with a maximum of 33°C (92°F). While both months see a fair amount of precipitation, May is wetter, averaging 120 mm (4.7 in) over 11 days compared to September's 86 mm (3.4 in) over 7 days. Additionally, humidity levels are generally higher in May at 83%, compared to September's average of 71%. For more detailed insights, you can check out Memphis weather in May.

In September, temperatures range from a minimum of 10°C (51°F) to a maximum of 35°C (96°F), with an average of 24°C (76°F). The month experiences less precipitation compared to June, totaling 86 mm (3.4 in) over about 7 days, and the humidity is relatively lower at 71%. In contrast, June features slightly milder minimum temperatures at 13°C (55°F) and a higher average of 26°C (79°F), with similar maximums, reaching up to 35°C (95°F). Precipitation in June is more pronounced, averaging 118 mm (4.6 in) across 11 days, coupled with higher humidity levels at 83%. For a detailed look at the June climate, check out Memphis weather in June.

In comparing the weather between September and July, it's evident that September enjoys slightly cooler temperatures with a minimum of 10°C (51°F) and an average of 24°C (76°F), while July's temperatures are notably higher, featuring a minimum of 16°C (62°F) and an average of 28°C (82°F). Both months experience maximum temperatures that peak at 35°C (95°F-96°F), but July tends to have more precipitation, averaging 124 mm (4.9 in) over 11 days compared to September's 86 mm (3.4 in) over 7 days. Additionally, humidity levels are higher in July at 81%, compared to September’s 71%. For more detailed information, you can explore Memphis weather in July.

In comparing the weather of September to August, it's evident that September experiences slightly cooler temperatures, with a minimum of 10°C (51°F) compared to August's minimum of 16°C (62°F). The average temperature in September is also lower at 24°C (76°F), while August maintains a warmer average of 26°C (80°F). Both months see similar maximum temperatures, peaking at 35°C (96°F) in September and 36°C (96°F) in August. However, September has a higher amount of rainfall with 86 mm (3.4 in) over 7 days compared to August’s 102 mm (4.0 in) over 11 days. Humidity levels are slightly lower in September at 71%, compared to 74% in August. For a more detailed look at the weather in August, you can check Memphis weather in August.

In September, the weather features a warm average temperature of 24°C (76°F), with daily highs reaching up to 35°C (96°F) and nighttime lows around 10°C (51°F). The month experiences about 86 mm (3.4 in) of precipitation over seven days, accompanied by a humidity level of 71%. In contrast, October brings a significant temperature drop, with average daytime highs still reaching 35°C (95°F) but a lower average of 18°C (65°F) and a minimum of 0°C (31°F) at night. Precipitation increases to 113 mm (4.4 in) over eight days, while humidity rises slightly to 76%. For more details on October weather, check out Memphis weather in October.

In September, temperatures are generally mild to warm, with a minimum of 10°C (51°F) and an average high reaching up to 35°C (96°F). The month experiences about 86 mm (3.4 in) of precipitation over seven days, accompanied by a humidity level of 71%. In contrast, November brings a significant drop in temperatures, featuring a minimum of -10°C (15°F) and an average high of 27°C (81°F). The precipitation in November is slightly lower at 78 mm (3.1 in), with rain expected over eight days and an increase in humidity to 84%. This shift showcases a transition from the warmth of early autumn to the chill of late fall. For more details, you can explore Memphis weather in November.

September and December exhibit striking contrasts in weather. September boasts a warm climate with average temperatures around 24°C (76°F), peaking at a maximum of 35°C (96°F), while December sees much cooler conditions, with average temperatures plunging to 8°C (47°F) and a minimum of -10°C (15°F). Additionally, September experiences relatively lower precipitation at 86 mm (3.4 in) over 7 days, compared to December's heightened rainfall totaling 147 mm (5.8 in) across 10 days. Humidity levels are also higher in December at 88%, compared to September's 71%. For a more detailed look, you can check out Memphis weather in December.

Compare Memphis's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Memphis

As September unfolds, Memphis bids farewell to the intense summer heat, transitioning to milder temperatures that invite outdoor activities. The humidity remains noticeable, but the overall climate is more temperate, creating a refreshing atmosphere compared to the sweltering summer months. With occasional rainfall spread across a few days, the city enjoys a balanced mix of sunshine and brief showers, making it an ideal time for locals and visitors alike to explore all that Memphis has to offer. For a deeper understanding of how September fits into the broader weather patterns, check out our detailed information on the city’s climate at Memphis Climate.