December weather forecastSea Island, GA
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 10h and 12min
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 48min
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: 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: 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: 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: 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).
