Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Sapelo Island's transition from November to December introduces an average high-temperature of an enjoyable 63.7°F (17.6°C), marking an insignificant variation from the 68.9°F (20.5°C). Sapelo Island's December nights cool down to an average low-temperature of 50.5°F (10.3°C).Humidity
August and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In December, in Sapelo Island, the rain falls for 10.6 days. Throughout December, 2.4" (61mm) of precipitation is accumulated. In Sapelo Island, during the entire year, the rain falls for 155.7 days and collects up to 26.57" (675mm) of precipitation.Snowfall
February and December are months with snowfall. The months with the most snowfall days in Sapelo Island, Georgia, 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 6min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 5:21 pm. On the last day of December, in Sapelo Island, sunrise is at 7:24 am and sunset at 5:32 pm EST.
Sunshine
With an average of 5.6h of sunshine, December has the least sunshine of the year in Sapelo Island.UV index
In Sapelo Island, the average daily maximum UV index in December is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In December, a regular UV index of 4 translates into these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Sapelo Island?
What is the most humid month in Sapelo Island?
What is the average humidity in December in Sapelo Island?
How much does it rain in Sapelo Island in December?
When does it snow the most in Sapelo Island?
When does it start snowing in Sapelo Island?
What is the month with the shortest days in Sapelo Island?
How many hours of daylight does Sapelo Island have in December?
When is the sunrise / sunset in December in Sapelo Island?
What is the month with the least sunshine in Sapelo Island?
How long on average sun shines in December in Sapelo Island?
How high is the UV index in December in Sapelo Island?
Average temperature in December
Sapelo Island, GA
- Average high temperature in December: 63.7°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 (59.7°F).
- Average low temperature in December: 50.5°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (45.7°F).
Average pressure in December
Sapelo Island, GA
- 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, August and September (29.98"Hg).
Average wind speed in December
Sapelo Island, GA
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Sapelo 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
Sapelo Island, GA
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in December
Sapelo Island, GA
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is August (20 days).
The month with the least rainy days is November (7.9 days).
Average snowfall days in December
Sapelo 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
Sapelo Island, GA
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
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: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Sapelo Island, GA
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is August (8.4 days).
Average UV index in December
Sapelo Island, GA
- 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
Sapelo Island, GA
- Average cloud cover in December: 40
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Sapelo 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).
Sapelo Island, Georgia, USA
Weather forecast for your location
2. Allow the app to use your location