Memphis
Tennessee, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Memphis, TN

The first month of the autumn, September, is still a warm month in Memphis, Tennessee, with average temperature varying between 65.7°F (18.7°C) and 83.3°F (28.5°C).

Temperature

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

Heat index

In September, the average heat index is calculated to a hot 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like pregnancy, wind, clothing, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, 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

April through October are months without snowfall in Memphis.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In Memphis, the average sunshine is 9.8h.

UV index

The average daily maximum UV index in Memphis is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Memphis?

In September, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 65.7°F (18.7°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), that combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in September in Memphis?

The average relative humidity in September is 72%.

How much does it rain in Memphis in September?

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

What is the driest month in Memphis?

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

When it does not snow in Memphis?

April through October are months without snowfall in Memphis.

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

In September, the average length of the day is 12.4h.

How many hours of sunshine does Memphis have in September?

The average sunshine in September in Memphis, Tennessee, is 9.8h.

How high is the UV index in September in Memphis?

The average daily maximum UV index in September in Memphis, Tennessee, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to the UV radiation.
Average temperature in September - Memphis, TN
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (46.8°F).

  • Average low temperature in September: 65.7°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (34°F).

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%).

Average rainfall in September - Memphis, TN
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is April (1.42").
The driest month (with the least rainfall) is September (0.43").

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).

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

The month with the highest snowfall is January (0.16").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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).

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).

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).