December weather forecast
Edisto Island, SC

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Weather in December

December, the first month of the winter in Edisto Island, is still a refreshing month, with an average temperature varying between 60.6°F (15.9°C) and 48°F (8.9°C).

Temperature

The transition into December subtly indicates a reduction in the average high-temperature, down to a moderate 60.6°F (15.9°C) from November's comfortable 66.2°F (19°C). Throughout the month of December, Edisto Island expects an average low of 48°F (8.9°C).

Humidity

December is the most humid month, with an average relative humidity of 77%.

Rainfall

In Edisto Island, during December, the rain falls for 7.5 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Edisto Island, during the entire year, the rain falls for 118.7 days and collects up to 10.63" (270mm) of precipitation.

Snowfall

January and December are months with snowfall in Edisto Island. The months with the most snowfall days in Edisto Island are January and December, with an average of 0.1 snowfall days.

Daylight

December has the shortest days of the year in Edisto Island, South Carolina, with an average of 10h and 6min of daylight.
On the first day of the month, sunrise is at 7:05 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:22 am and sunset at 5:26 pm EST.

Sunshine

With an average of 5.7h of sunshine, December has the least sunshine of the year.

UV index

The average daily maximum UV index in December in Edisto Island is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a regular UV index of 4 translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December in Edisto Island?

During December, Edisto Island experiences an average high-temperature of 60.6°F (15.9°C) and a low-temperature of 48°F (8.9°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 95°F (35°C).

What is the most humid month in Edisto Island?

With an average relative humidity of 77%, December is the most humid month in Edisto Island.

What is the average humidity in December in Edisto Island?

The average relative humidity in December in Edisto Island, South Carolina, is 77%.

How much does it rain in Edisto Island in December?

In Edisto Island, South Carolina, during December, the rain falls for 7.5 days and regularly aggregates up to 1.14" (29mm) of precipitation.

When does it snow the most in Edisto Island?

The months with the most snowfall days in Edisto Island, South Carolina, are January and December, with an average of 0.1 snowfall days.

When does it start snowing in Edisto Island?

December is the first month it typically snows in Edisto Island. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days in Edisto Island?

December has the shortest days of the year in Edisto Island, with an average of 10h and 6min of daylight.

What is the average length of the day in December in Edisto Island?

In Edisto Island, the average day length in December is 10h and 3min.

What time are sunrise and sunset in December in Edisto Island?

On the first day of December, sunrise is at 7:05 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:26 pm EST.

What is the month with the least sunshine in Edisto Island?

With an average of 5.7h of sunshine, December has the least sunshine of the year in Edisto Island, South Carolina.

How many hours of sunshine does Edisto Island have in December?

In December, the average sunshine duration is 5.7h.

How high is the UV index in December in Edisto Island?

In December, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
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 December
Edisto Island, SC

Average temperature in December - Edisto Island, SC
  • Average high temperature in December: 60.6°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 December: 48°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).

Average pressure in December
Edisto Island, SC

Average pressure in December - Edisto Island, SC
  • Average pressure in December: 30.13"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).

Average wind speed in December
Edisto Island, SC

Average wind speed in December - Edisto Island, SC
  • Average wind speed in December: 7.5mph

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).

Average humidity in December
Edisto Island, SC

Average humidity in December - Edisto Island, SC
  • Average humidity in December: 77%

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

Average rainfall in December
Edisto Island, SC

Average rainfall in December - Edisto Island, SC
  • Average rainfall in December: 1.14"

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

Average rainfall days in December
Edisto Island, SC

Average rainfall days in December - Edisto Island, SC
  • Average rainfall days in December: 7.5 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).

Average snowfall days in December
Edisto Island, SC

Average snowfall days in December - Edisto Island, SC
  • Average snowfall days in December: 0.1 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).

Average daylight in December /
Average sunshine in December
Edisto Island, SC

Average daylight in December / Average sunshine in December - Edisto Island, SC
  • Average daylight in December: 10h and 1min

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 December: 5h and 4min

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).

Average sunshine days in December
Edisto Island, SC

Average sunshine days in December - Edisto Island, SC
  • Average sunshine days in December: 21.7 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).

Average UV index in December
Edisto Island, SC

Average UV index in December - Edisto Island, SC
  • Average UV index in December: 4

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).

Average cloud cover in December
Edisto Island, SC

Average cloud cover in December - Edisto Island, SC
  • Average cloud cover in December: 39

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).

Average visibility in December
Edisto Island, SC

Average visibility in December - Edisto Island, SC
  • Average visibility in December: 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).

Edisto Island, South Carolina, USA

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