December weather forecast
Sea Island, GA

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Weather in December

December, the first month of the winter in Sea Island, is also an enjoyable month, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 64.4°F (18°C).

Temperature

The onset of December brings with it an average high-temperature of a refreshing 64.4°F (18°C), showing a negligible variation from the month before. Sea Island experiences an average nighttime temperature of 52.9°F (11.6°C) in the month of December.

Humidity

The months with the highest humidity are August and December, with an average relative humidity of 78%.

Rainfall

In Sea Island, in December, it is raining for 9.5 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 163.3 rainfall days, and 20.43" (519mm) of precipitation is accumulated.

Snowfall

February and December are months with snowfall. The months with the most snowfall days are February and December, with an average of 0.1 snowfall days.

Daylight

December has the shortest days of the year, with an average of 10h and 12min of daylight.
On the first day of December, sunrise is at 7:06 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:33 pm EST.

Sunshine

The month with the least sunshine in Sea Island, Georgia, is December, with an average of 5.8h of sunshine.

UV index

In December, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 4 suggests these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. It's recommended to limit sun exposure when its radiation is at its peak during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Sea Island in December?

In Sea Island, 64.4°F (18°C) is the average high-temperature and 52.9°F (11.6°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 95°F (35°C).

What is the most humid month?

The months with the highest humidity are August and December, with an average relative humidity of 78%.

What is the average humidity in December?

The average relative humidity in December is 78%.

How many days does it rain in December?

In December, the rain falls for 9.5 days. Throughout December, 1.02" (26mm) of precipitation is accumulated.

When does it snow the most in Sea Island?

The months with the most snowfall days are February and December, with an average of 0.1 snowfall days.

When does it start to snow?

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

What is the month with the shortest days?

The month with the shortest days in Sea Island is December, with an average of 10h and 12min of daylight.

How many hours of daylight does Sea Island have in December?

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

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:33 pm EST.

What is the month with the least sunshine?

With an average of 5.8h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in Sea Island?

The average sunshine duration in December in Sea Island is 5.8h.

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

The average daily maximum UV index in December is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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 December
Sea Island, GA

Average temperature in December - Sea Island, GA
  • Average high temperature in December: 64.4°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in December: 52.9°F

The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (47.7°F).

Average pressure in December
Sea Island, GA

Average pressure in December - Sea Island, GA
  • Average pressure in December: 30.12"Hg

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

Average wind speed in December
Sea Island, GA

Average wind speed in December - Sea Island, GA
  • Average wind speed in December: 8.6mph

The windiest months (with the highest average wind speed) are January and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in December
Sea Island, GA

Average humidity in December - Sea Island, GA
  • Average humidity in December: 78%

The months with the highest relative humidity are August and December (78%).
The month with the lowest relative humidity is March (72%).

Average rainfall in December
Sea Island, GA

Average rainfall in December - Sea Island, GA
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in December
Sea Island, GA

Average rainfall days in December - Sea Island, GA
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is January (8.2 days).

Average snowfall days in December
Sea Island, GA

Average snowfall days in December - Sea Island, GA
  • Average snowfall days in December: 0.1 days

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

Average daylight in December /
Average sunshine in December
Sea Island, GA

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

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days in December
Sea Island, GA

Average sunshine days in December - Sea Island, GA
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is March (20.1 days).
The month with the least sunshine days is August (4.2 days).

Average UV index in December
Sea Island, GA

Average UV index in December - Sea Island, GA
  • Average UV index in December: 4

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

Average cloud cover in December
Sea Island, GA

Average cloud cover in December - Sea Island, GA
  • Average cloud cover in December: 38

The months with the most cloud cover are February and December (Cloud cover 38).
The months with the least cloud cover are April, May, June and July (Cloud cover 27).

Average visibility in December
Sea Island, GA

Average visibility in December - Sea Island, GA
  • 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).

Sea Island, Georgia, USA

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