September weather forecast
Edisto Beach, SC

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Weather in September

September in Edisto Beach witnesses the shift from the heat of summer to the milder fall season. The slightly lower temperature and humidity levels make for a pleasant time to explore the outdoors without the intense summer heat. The decrease in rainfall makes activities like camping and exploring wildlife more enjoyable. September marks the transition to more bearable and enjoyable weather conditions.

Temperature

With September's arrival, Edisto Beach notes an average high-temperature of a moderately hot 84.9°F (29.4°C), closely following the trend of the preceding month. Throughout September, Edisto Beach registers a consistent average low-temperature of 71.8°F (22.1°C).

Heat index

September's mean heat index is estimated at a sweltering 95°F (35°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Edisto Beach, South Carolina, the average relative humidity in September is 75%.

Rainfall

In Edisto Beach, during September, the rain falls for 11.4 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Edisto Beach, during the entire year, the rain falls for 118.7 days and collects up to 10.63" (270mm) of precipitation.

Snowfall

In Edisto Beach, snow does not fall in February through November.

Daylight

In September, the average length of the day in Edisto Beach is 12h and 22min.
On the first day of September, sunrise is at 6:56 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:06 pm EDT.

Sunshine

In Edisto Beach, the average sunshine in September is 9h.

UV index

The average daily maximum UV index in September in Edisto Beach, South Carolina, is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 6 during September translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

How hot does it get in Edisto Beach in September?

Edisto Beach in September has an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 71.8°F (22.1°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 95°F (35°C).

What is the average humidity in September in Edisto Beach?

In Edisto Beach, South Carolina, the average relative humidity in September is 75%.

How many days does it rain in September in Edisto Beach?

In Edisto Beach, South Carolina, in September, it is raining for 11.4 days, with typically 1.1" (28mm) of accumulated precipitation.

When it does not snow in Edisto Beach?

February through November are months without snowfall in Edisto Beach, South Carolina.

What is the average length of the day in September in Edisto Beach?

In September, the average day length in Edisto Beach is 12h and 22min.

When are sunrise and sunset in September in Edisto Beach?

In September, on the first day of the month, sunrise is at 6:56 am and sunset at 7:45 pm. On the last day of the month, in Edisto Beach, South Carolina, sunrise is at 7:15 am and sunset at 7:06 pm EDT.

How long on average sun shines in September in Edisto Beach?

In Edisto Beach, South Carolina, the average sunshine duration in September is 9h.

How high is the UV index in September in Edisto Beach?

In Edisto Beach, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Edisto Beach, SC

Average temperature in September - Edisto Beach, SC
  • Average high temperature in September: 84.9°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (57.2°F).

  • Average low temperature in September: 71.8°F

The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (43.2°F).

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Average pressure in September
Edisto Beach, SC

Average pressure in September - Edisto Beach, SC
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

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Average wind speed in September
Edisto Beach, SC

Average wind speed in September - Edisto Beach, SC
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in September
Edisto Beach, SC

Average humidity in September - Edisto Beach, SC
  • Average humidity in September: 75%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and March (72%).

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Average rainfall in September
Edisto Beach, SC

Average rainfall in September - Edisto Beach, SC
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is January (0.31").

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Average rainfall days in September
Edisto Beach, SC

Average rainfall days in September - Edisto Beach, SC
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is August (16.9 days).
The month with the least rainy days is November (5.7 days).

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Average snowfall days in September
Edisto Beach, SC

Average snowfall days in September - Edisto Beach, SC
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Edisto Beach, SC

Average daylight in September / Average sunshine in September - Edisto Beach, SC
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in September
Edisto Beach, SC

Average sunshine days in September - Edisto Beach, SC
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is August (9.6 days).

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Average UV index in September
Edisto Beach, SC

Average UV index in September - Edisto Beach, SC
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in September
Edisto Beach, SC

Average cloud cover in September - Edisto Beach, SC
  • Average cloud cover in September: 28

The months with the most cloud cover are February and December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 25).

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Average visibility in September
Edisto Beach, SC

Average visibility in September - Edisto Beach, SC
  • 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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Edisto Beach, South Carolina, USA

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