December weather forecastPort Wentworth, GA
December
Weather in December
The first month of the winter, December, is still a refreshing month in Port Wentworth, Georgia, with an average temperature ranging between min 47.8°F (8.8°C) and max 61.7°F (16.5°C).Temperature
The arrival of December corresponds with a light shift in temperature, down from a refreshing 67.1°F (19.5°C) in November to a still comfortable 61.7°F (16.5°C). Port Wentworth experiences a consistent average temperature of 47.8°F (8.8°C) throughout the nights in December.Humidity
With an average relative humidity of 77%, December is the most humid month.Rainfall
In Port Wentworth, in December, it is raining for 10.4 days, with typically 2.44" (62mm) of accumulated precipitation. In Port Wentworth, Georgia, during the entire year, the rain falls for 167.8 days and collects up to 30" (762mm) of precipitation.Snowfall
January and December are months with snowfall. The months with the most snowfall are January and December, with an average 0.04" (1mm) of accumulated snow.Daylight
December has the shortest days of the year, with an average of 10h and 6min of daylight.On the first day of December, sunrise is at 7:08 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:30 pm EST.
Sunshine
December has the least sunshine of the year in Port Wentworth, with an average of 5.5h of sunshine.UV index
The average daily maximum UV index in December is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in December leads to these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Port Wentworth, GA
- Average high temperature in December: 61.7°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 (58.1°F).
- Average low temperature in December: 47.8°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).
Average pressure in December
Port Wentworth, 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 and August (29.98"Hg).
Average wind speed in December
Port Wentworth, GA
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Port Wentworth, GA
- 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
Port Wentworth, GA
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is August (4.69").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in December
Port Wentworth, GA
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is August (23.1 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Port Wentworth, GA
- Average snowfall in December: 0.04"
The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Port Wentworth, GA
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Port Wentworth, GA
- Average daylight in December: 10h and 6min
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 30min
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 30min).
Average sunshine days in December
Port Wentworth, GA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is August (5.2 days).
Average UV index in December
Port Wentworth, GA
- Average UV index in December: 4
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in December
Port Wentworth, GA
- Average cloud cover in December: 39
The month with the most cloud cover is February (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Port Wentworth, 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).





