September weather forecast
Charlotte, NC

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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

With the arrival of September, the fall season starts to settle in Charlotte. The average high temperature drops to a more comfortable 82.9°F and the low temperature averages at around 63.7°F. Compared to August, the fall season brings a noticeable shift in the weather and daylight hours. Looking ahead to October, temperatures continue their gradual decline, paving the way for the more pronounced autumn weather. It transforms the city into a beautiful spectacle with trees adorned in hues of red, orange, and yellow.

Temperature

The average high-temperature in Charlotte, North Carolina, shows a slight dip in September, from August's tropical 88.7°F to a moderately hot 82.9°F. An average nighttime temperature of 63.7°F is noted during the month of September.

Heat index

The heat index for September is appraised at a hot 89.6°F. Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.

Humidity

In Charlotte, North Carolina, the average relative humidity in September is 72%.

Rainfall

In Charlotte, in September, during 11.8 rainfall days, 1.5" of precipitation is typically accumulated. In Charlotte, during the entire year, the rain falls for 145.8 days and collects up to 20.47" of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:55 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:09 pm EDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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FAQ

How hot does it get in Charlotte in September?

The high-temperature, in September, in Charlotte, records 82.9°F, while the low-temperature is 63.7°F. In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 89.6°F.

What is the average humidity in September in Charlotte?

The average relative humidity in September in Charlotte, North Carolina, is 72%.

How much does it rain in Charlotte in September?

In Charlotte, North Carolina, during September, the rain falls for 11.8 days and regularly aggregates up to 1.5" of precipitation.

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?

The average day length in September in Charlotte, North Carolina, is 12h and 23min.

When is the sunrise / sunset in September in Charlotte?

In September, on the first day of the month, sunrise is at 6:55 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:09 pm EDT.

How long on average sun shines in September in Charlotte?

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

What is the UV index reading in September in Charlotte?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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"Hg

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

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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 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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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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Charlotte, North Carolina, USA

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