December weather forecast
Swansboro, NC

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Weather in December

December, the first month of the winter in Swansboro, is still a refreshing month, with an average temperature ranging between max 57.6°F (14.2°C) and min 46.6°F (8.1°C).

Temperature

December reveals a small adjustment in temperature, transitioning from an average high of a comfortable 63.3°F (17.4°C) in November to a still refreshing 57.6°F (14.2°C). During the nights in December, Swansboro experiences a consistent average temperature of 46.6°F (8.1°C).

Humidity

The average relative humidity in December is 77%.

Rainfall

In Swansboro, during December, the rain falls for 10.9 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Swansboro, North Carolina, during the entire year, the rain falls for 156.1 days and collects up to 21.61" (549mm) of precipitation.

Snowfall

In Swansboro, snow does not fall in April through December.

Ocean temperature

In December, the average ocean temperature is 63°F (17.2°C).
Note: For most people, a water temperature of 63°F (17.2°C) is not conducive to enjoyable swimming. Breathing control becomes harder as the water temperature dips below 69.8°F (21°C).

Daylight

December has the shortest days of the year in Swansboro, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 6:57 am and sunset at 4:57 pm. On the last day of December, in Swansboro, sunrise is at 7:15 am and sunset at 5:08 pm EST.

Sunshine

With an average of 5.5h of sunshine, December has the least sunshine of the year.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 3 in December translates into these instructions:
Exercise prevention - Warding off sunburn is urged. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Swansboro in December?

The high-temperature, in December, in Swansboro, is 57.6°F (14.2°C), while the low-temperature averages to 46.6°F (8.1°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is appraised at 86°F (30°C).

What is the average humidity in December in Swansboro?

In Swansboro, North Carolina, the average relative humidity in December is 77%.

How many days does it rain in December in Swansboro?

In Swansboro, in December, during 10.9 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

When it does not snow in Swansboro?

April through December are months without snowfall in Swansboro, North Carolina.

Does it snow in Swansboro in December?

In Swansboro, in December, it doesn't snow. In January, it regularly snows.

What is the ocean temperature in December in Swansboro?

In December, the average ocean temperature in Swansboro is 63°F (17.2°C). For swimming, a surface water temperature of 63°F (17.2°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the month with the shortest days in Swansboro?

With an average of 9h and 54min of daylight, December has the shortest days of the year in Swansboro, North Carolina.

What is the average length of the day in December in Swansboro?

In December, the average day length in Swansboro is 9h and 53min.

When is the sunrise / sunset in December in Swansboro?

On the first day of December in Swansboro, sunrise is at 6:57 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:08 pm EST.

What is the month with the least sunshine in Swansboro?

The month with the least sunshine in Swansboro is December, with an average of 5.5h of sunshine.

How long on average sun shines in December in Swansboro?

In December, the average sunshine duration in Swansboro is 5.5h.

When is the lowest UV index in Swansboro?

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Swansboro, North Carolina.

What is the UV index reading in December in Swansboro?

In Swansboro, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Swansboro, NC

Average temperature in December - Swansboro, NC
  • Average high temperature in December: 57.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (53.1°F).

  • Average low temperature in December: 46.6°F

The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (41.2°F).

Average pressure in December
Swansboro, NC

Average pressure in December - Swansboro, NC
  • Average pressure in December: 30.12"Hg

The months with the highest atmospheric pressure are January, November and December (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in December
Swansboro, NC

Average wind speed in December - Swansboro, NC
  • Average wind speed in December: 10.3mph

The windiest months (with the highest average wind speed) are February, March and April (11.1mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).

Average humidity in December
Swansboro, NC

Average humidity in December - Swansboro, NC
  • Average humidity in December: 77%

The month with the highest relative humidity is August (78%).
The months with the lowest relative humidity are January, February, March and April (74%).

Average rainfall in December
Swansboro, NC

Average rainfall in December - Swansboro, NC
  • Average rainfall in December: 1.42"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in December
Swansboro, NC

Average rainfall days in December - Swansboro, NC
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is August (20.1 days).
The month with the least rainy days is February (8.8 days).

Average snowfall in December
Swansboro, NC

Average snowfall in December - Swansboro, NC
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.2").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Swansboro, NC

Average snowfall days in December - Swansboro, NC
  • Average snowfall days in December: 0.3 days

The months with the highest number of snowfall days are January, February and December (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in December
Swansboro, NC

Average sea temperature in December - Swansboro, NC
  • Average sea temperature in December: 62.9°F

The best month for swimming (with the highest average sea temperature) is August (82.6°F).
The coldest month (with the lowest average sea temperature) is February (57.7°F).

Average daylight in December /
Average sunshine in December
Swansboro, NC

Average daylight in December / Average sunshine in December - Swansboro, NC
  • Average daylight in December: 9h and 5min

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 3min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Swansboro, NC

Average sunshine days in December - Swansboro, NC
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is August (8.4 days).

Average UV index in December
Swansboro, NC

Average UV index in December - Swansboro, NC
  • Average UV index in December: 3

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

Average cloud cover in December
Swansboro, NC

Average cloud cover in December - Swansboro, NC
  • Average cloud cover in December: 40

The months with the most cloud cover are February, March and December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in December
Swansboro, NC

Average visibility in December - Swansboro, 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).

Swansboro, North Carolina, USA

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