September weather forecast
Memphis, TN

The intense city network of Memphis, Tennessee
The intense city network of Memphis, Tennessee

Weather in September

September, the first month of the autumn, in Memphis, is also a moderately hot month, with temperature in the range of an average high of 83.3°F (28.5°C) and an average low of 65.7°F (18.7°C).

Temperature

In Memphis, the average high-temperature in September is practically the same as in August - a moderately hot 83.3°F (28.5°C). The average low-temperature,, is 65.7°F (18.7°C).

Heat index

The average heat index in September is appraised at a tropical 89.6°F (32°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like pregnancy, wind, metabolic differences, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Memphis, Tennessee, the average relative humidity is 72%.

Rainfall

The month with the least rainfall is September when the rain falls for 8.2 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

In Memphis snow does not fall in April through October.

Daylight

The average length of the day in September is 12.4h.

Sunshine

In September, the average sunshine is 9.8h.

UV index

In September, the average daily maximum UV index in Memphis, Tennessee, is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Memphis?

The average high-temperature, in September, in Memphis, Tennessee, is 83.3°F (28.5°C), while the average low-temperature is 65.7°F (18.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is appraised at 89.6°F (32°C).

What is the average humidity in September in Memphis?

In Memphis, the average relative humidity in September is 72%.

What is the driest month in Memphis?

September is the month with the least rainfall. Rain falls for 8.2 days and accumulates 0.43" (11mm) of precipitation.

How much does it rain in Memphis in September?

In Memphis, Tennessee, in September, it is raining for 8.2 days, with typically 0.43" (11mm) of accumulated precipitation.

When it does not snow in Memphis?

In Memphis, Tennessee, snow does not fall in April through October.

What is the average length of the day in September in Memphis?

The average length of the day in September in Memphis is 12.4h.

How long on average sun shines in September in Memphis?

In Memphis, Tennessee, the average sunshine in September is 9.8h.

What is the UV index intensity in September in Memphis?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Memphis, TN

Average temperature in September - Memphis, TN
  • Average high temperature in September: 28.5°C

The warmest month (with the highest average high temperature) is July (31.5°C).
The month with the lowest average high temperature is January (8.2°C).

  • Average low temperature in September: 18.7°C

The month with the highest average low temperature is July (22.3°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).

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Average pressure in September
Memphis, TN

Average pressure in September - Memphis, TN
  • Average pressure in September: 1016mbar

The month with the highest atmospheric pressure is January (1021.7mbar).
The month with the lowest atmospheric pressure is June (1013.9mbar).

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Average wind speed in September
Memphis, TN

Average wind speed in September - Memphis, TN
  • Average wind speed in September: 9.4km/h

The windiest month (with the highest average wind speed) is February (15km/h).
The calmest months (with the lowest average wind speed) are July and August (8.7km/h).

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Average humidity in September
Memphis, TN

Average humidity in September - Memphis, TN
  • Average humidity in September: 72%

Months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in September
Memphis, TN

Average rainfall in September - Memphis, TN
  • Average rainfall in September: 11mm

The wettest month (with the highest rainfall) is April (36mm).
The driest month (with the least rainfall) is September (11mm).

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Average rainfall days in September
Memphis, TN

Average rainfall days in September - Memphis, TN
  • Average rainfall days in September: 8.2 days

Months with the highest number of rainy days are May and July (12.3 days).
The month with the least rainy days is October (6.5 days).

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Average snowfall in September
Memphis, TN

Average snowfall in September - Memphis, TN
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (4mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in September
Memphis, TN

Average snowfall days in September - Memphis, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.4 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Memphis, TN

Average daylight in September / Average sunshine in September - Memphis, TN
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 9.8h

The month with the most sunshine is June (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in September
Memphis, TN

Average sunshine days in September - Memphis, TN
  • Average sunshine days in September: 19.7 days

The month with the most sunshine days is October (22.1 days).
The month with the least sunshine days is June (14.9 days).

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Average UV index in September
Memphis, TN

Average UV index in September - Memphis, TN
  • Average UV index in September: 5

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Memphis, TN

Average cloud cover in September - Memphis, TN
  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).

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Average visibility in September
Memphis, TN

Average visibility in September - Memphis, TN
  • Average visibility in September: 9km

Months with the highest visibility are June and October (10km).
Months with the lowest visibility are January, February, March, April, May, July, August, September, November and December (9km).

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