December weather forecastSouthport, NC
December
Weather in December
The first month of the winter, December, is still a mild month in Southport, North Carolina, with an average temperature fluctuating between 59.4°F (15.2°C) and 47.7°F (8.7°C).Temperature
Southport, North Carolina, in December witnesses an average high-temperature of a moderate 59.4°F (15.2°C), indicating a slight variation from November's 64°F (17.8°C). Throughout the month of December, Southport reports a steady low-temperature average of 47.7°F (8.7°C).Humidity
May, June, August and December, with an average relative humidity of 77%, are the most humid months in Southport.Rainfall
In Southport, North Carolina, in December, it is raining for 12.5 days, with typically 3.78" (96mm) of accumulated precipitation. Throughout the year, there are 181.2 rainfall days, and 43.94" (1116mm) of precipitation is accumulated.Snowfall
Months with snowfall in Southport, North Carolina, are January, February and December. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. In Southport, during the entire year, snow falls for 0.9 days and aggregates up to 0.79" (20mm) of snow.Ocean temperature
In December, the average ocean temperature in Southport is 61.5°F (16.4°C).Note: The majority of people find swimming in 61.5°F (16.4°C) unenjoyable. As the water temperature decreases from 69.8°F (21°C) to 59°F (15°C), breathing becomes more challenging to control.
Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:59 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:13 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.4h of sunshine.UV index
In Southport, 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 rays for average individuals.Note: A daily high UV index of 4 in December leads to these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Southport, NC
- Average high temperature in December: 59.4°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (55.4°F).
- Average low temperature in December: 47.7°F
The month with the highest average low temperature is July (76.8°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).
Average pressure in December
Southport, NC
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Southport, NC
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in December
Southport, NC
- Average humidity in December: 77%
The months with the highest relative humidity are May, June, August and December (77%).
The month with the lowest relative humidity is March (73%).
Average rainfall in December
Southport, NC
- Average rainfall in December: 3.78"
The wettest month (with the highest rainfall) is August (6.18").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in December
Southport, NC
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in December
Southport, NC
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Southport, NC
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Southport, NC
- Average sea temperature in December: 61.6°F
The best month for swimming (with the highest average sea temperature) is August (82.7°F).
The coldest month (with the lowest average sea temperature) is March (56°F).
Average daylight in December /
Average sunshine in December
Southport, NC
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in December
Southport, NC
- Average sunshine days in December: 17.6 days
The months with the most sunshine days are October and December (17.6 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in December
Southport, NC
- 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
Southport, NC
- Average cloud cover in December: 42
The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 28).
Average visibility in December
Southport, NC
- 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).
