December weather forecast
Seabrook, SC

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Weather in December

The first month of the winter, December, is still a refreshing month in Seabrook, South Carolina, with temperature in the range of an average low of 47.3°F (8.5°C) and an average high of 61.5°F (16.4°C).

Temperature

December's onset introduces a mild reduction in the average high-temperature, from 66.9°F (19.4°C) in November to a still refreshing 61.5°F (16.4°C). In Seabrook, December's nights observe an average temperature dip to a frosty 47.3°F (8.5°C).

Humidity

With an average relative humidity of 77%, December is the most humid month in Seabrook, South Carolina.

Rainfall

In Seabrook, in December, during 11.3 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. Throughout the year, in Seabrook, there are 166.9 rainfall days, and 33.9" (861mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

The month with the shortest days is December, with an average of 10h and 6min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 5:17 pm. On the last day of December, in Seabrook, sunrise is at 7:24 am and sunset at 5:28 pm EST.

Sunshine

With an average of 5.5h of sunshine, December has the least sunshine of the year in Seabrook.

UV index

The average daily maximum UV index in December in Seabrook is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, an average UV index of 4 transforms into the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Seabrook in December?

December temperatures vary between a high-temperature of 61.5°F (16.4°C) and a low-temperature of 47.3°F (8.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is appraised at 96.8°F (36°C).

What is the most humid month in Seabrook?

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

What is the average humidity in December in Seabrook?

The average relative humidity in December is 77%.

How many days does it rain in December in Seabrook?

In December, in Seabrook, South Carolina, the rain falls for 11.3 days. Throughout December, 3.27" (83mm) of precipitation is accumulated.

When it does not snow in Seabrook?

In Seabrook, snow does not fall in February through December.

Does it snow in Seabrook in December?

In Seabrook, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days in Seabrook?

The month with the shortest days in Seabrook, South Carolina, is December, with an average of 10h and 6min of daylight.

What is the average length of the day in December in Seabrook?

The average day length in December is 10h and 4min.

When is the sunrise / sunset in December in Seabrook?

On the first day of December, sunrise is at 7:07 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:28 pm EST.

What is the month with the least sunshine in Seabrook?

December has the least sunshine of the year in Seabrook, with an average of 5.5h of sunshine.

How many hours of sunshine does Seabrook have in December?

In December, the average sunshine duration in Seabrook, South Carolina, is 5.5h.

How high is the UV index in December in Seabrook?

In December, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
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 December
Seabrook, SC

Average temperature in December - Seabrook, SC
  • Average high temperature in December: 61.5°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (57.7°F).

  • Average low temperature in December: 47.3°F

The months with the highest average low temperature are July and August (75.6°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).

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Average pressure in December
Seabrook, SC

Average pressure in December - Seabrook, 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).

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Average wind speed in December
Seabrook, SC

Average wind speed in December - Seabrook, SC
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in December
Seabrook, SC

Average humidity in December - Seabrook, 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 (71%).

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Average rainfall in December
Seabrook, SC

Average rainfall in December - Seabrook, SC
  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is August (4.76").
The driest month (with the least rainfall) is January (1.54").

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Average rainfall days in December
Seabrook, SC

Average rainfall days in December - Seabrook, SC
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in December
Seabrook, SC

Average snowfall in December - Seabrook, SC
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in December
Seabrook, SC

Average snowfall days in December - Seabrook, SC
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Seabrook, SC

Average daylight in December / Average sunshine in December - Seabrook, 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 3min

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 30min).

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Average sunshine days in December
Seabrook, SC

Average sunshine days in December - Seabrook, SC
  • Average sunshine days in December: 18.3 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is August (5.2 days).

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Average UV index in December
Seabrook, SC

Average UV index in December - Seabrook, 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).

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Average cloud cover in December
Seabrook, SC

Average cloud cover in December - Seabrook, SC
  • Average cloud cover in December: 41

The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in December
Seabrook, SC

Average visibility in December - Seabrook, 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).

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Seabrook, South Carolina, USA

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