September weather forecast
Charlotte, NC

A small river flowing throw the beautiful Marshall Park overlooking Charlotte city buildings, North Carolina
A small river flowing throw the beautiful Marshall Park overlooking Charlotte city buildings, North Carolina

Weather in September

September, the first month of the autumn in Charlotte, is also a moderately hot month, with an average temperature ranging between min 63.7°F (17.6°C) and max 82.9°F (28.3°C).

Temperature

In Charlotte, the average high-temperature in September slightly decreases from a tropical 88.7°F (31.5°C) in August to a moderately hot 82.9°F (28.3°C). In Charlotte, the average low-temperature is 63.7°F (17.6°C).

Heat index

The average heat index in September is appraised at a tropical 88.9°F (31.6°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. 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', 'feels like', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, clothing, pregnancy). 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 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 Charlotte, the average relative humidity in September is 72%.

Rainfall

In Charlotte, during September, the rain falls for 11.8 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, in Charlotte, there are 145.8 rainfall days, and 20.47" (520mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Charlotte.

Daylight

In September, the average length of the day in Charlotte, North Carolina, is 12h and 23min.
On the first day of the month, sunrise is at 6:56 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:08 pm EDT.

Sunshine

The average sunshine in September in Charlotte is 8.8h.

UV index

In September, the average daily maximum UV index in Charlotte, North Carolina, is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. 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.
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FAQ

What is the temperature in September in Charlotte?

In September, in Charlotte, the average high-temperature is 82.9°F (28.3°C), and the average low-temperature is 63.7°F (17.6°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 88.9°F (31.6°C).

What is the average humidity in September in Charlotte?

The average relative humidity in September is 72%.

How many days does it rain in September in Charlotte?

In Charlotte, North Carolina, in September, during 11.8 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow in Charlotte?

In Charlotte, North Carolina, snow does not fall in April through November.

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

In September, the average day length is 12h and 23min.

When is the sunrise / sunset in September in Charlotte?

On the first day of September, sunrise is at 6:56 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:08 pm EDT.

How long on average sun shines in September in Charlotte?

In Charlotte, North Carolina, the average sunshine duration in September is 8.8h.

How high is the UV index in September in Charlotte?

In Charlotte, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.

Average temperature in September
Charlotte, NC

Average temperature in September - Charlotte, NC
  • Average high temperature in September: 82.9°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

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Average pressure in September
Charlotte, NC

Average pressure in September - Charlotte, NC
  • Average pressure in September: 30.04"

The month with the highest atmospheric pressure is November (30.15").
The month with the lowest atmospheric pressure is June (29.98").

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Average wind speed in September
Charlotte, NC

Average wind speed in September - Charlotte, NC
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in September
Charlotte, NC

Average humidity in September - Charlotte, NC
  • Average humidity in September: 72%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in September
Charlotte, NC

Average rainfall in September - Charlotte, NC
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is August (2.6").
The driest month (with the least rainfall) is October (1.3").

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Average rainfall days in September
Charlotte, NC

Average rainfall days in September - Charlotte, NC
  • Average rainfall days in September: 11.8 days

The months with the highest number of rainy days are July and August (16.9 days).
The month with the least rainy days is November (7.8 days).

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Average snowfall in September
Charlotte, NC

Average snowfall in September - Charlotte, NC
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Charlotte, NC

Average snowfall days in September - Charlotte, NC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Charlotte, NC

Average daylight in September / Average sunshine in September - Charlotte, NC
  • Average daylight in September: 12h and 23min

The month with the longest days is June (Average daylight: 14h and 29min).
The month with the shortest days is December (Average daylight: 9h and 50min).

  • Average sunshine in September: 8.8h

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is December (Average sunshine: 5.4h).

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Average sunshine days in September
Charlotte, NC

Average sunshine days in September - Charlotte, NC
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in September
Charlotte, NC

Average UV index in September - Charlotte, NC
  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in September
Charlotte, NC

Average cloud cover in September - Charlotte, NC
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in September
Charlotte, NC

Average visibility in September - Charlotte, NC
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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