December weather forecast
Oak Island, NC

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Weather in December

December, the final month of the year at Oak Island, plunges further into the biting cold with temperatures continuing to drop from the warmth of November. Rainfall rises to 2.28" (58mm), a significant increase from the recorded 1.57" (40mm) in November. The reduced daylight and intensity of the sun default a sure indication of the winter solstice and the beginning of the new year. The fresh harshness of winter can sometimes conflict with the warm, end-of-year cheer, manifested during the holiday time. Nevertheless, the charming chill in the air, the twinkling icicles hanging from the rooftops, coupled with the overall festivity mood that December brings along, make the last month something residents and visitors alike keenly await.

Temperature

Upon the onset of December, Oak Island witnesses an average high-temperature of a mild 59.4°F (15.2°C), showing a close resemblance to the prior month. Oak Island anticipates an average minimum temperature of 48.9°F (9.4°C) in the month of December.

Humidity

In Oak Island, the average relative humidity in December is 77%.

Rainfall

In Oak Island, in December, during 10.7 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, there are 157.9 rainfall days, and 24.69" (627mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Ocean temperature

In Oak Island, the average seawater temperature in December is 61.5°F (16.4°C).
Note: The majority of individuals do not enjoy swimming in water that is 61.5°F (16.4°C). Breathing control becomes more challenging as the water temperature dips from 69.8°F (21°C) to 59°F (15°C).

Daylight

December has the shortest days of the year in Oak Island, North Carolina, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:00 am and sunset at 5:03 pm. On the last day of December, sunrise is at 7:17 am and sunset at 5:14 pm EST.

Sunshine

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

UV index

The average daily maximum UV index in December in Oak Island is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 4 in December translates into this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

What are the temperatures in December?

An average high-temperature, in December, in Oak Island, is 59.4°F (15.2°C) and the average low-temperature is 48.9°F (9.4°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in December?

In Oak Island, the average relative humidity in December is 77%.

How many days does it rain in December?

In Oak Island, in December, it is raining for 10.7 days, with typically 2.28" (58mm) of accumulated precipitation.

When it does not snow?

In Oak Island, snow does not fall in February through December.

Does it snow in December?

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

How cold is the water in December?

In Oak Island, the average seawater temperature in December is 61.5°F (16.4°C). For swimming, a surface water temperature of 61.5°F (16.4°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 Oak Island?

December has the shortest days of the year, with an average of 9h and 54min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 56min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:00 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:14 pm EST.

What is the month with the least sunshine?

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

How long on average sun shines in December?

In December, the average sunshine duration is 5.5h.

What is the UV index reading in December?

In December, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
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
Oak Island, NC

Average temperature in December - Oak Island, NC
  • Average high temperature in December: 59.4°F

The warmest months (with the highest average high temperature) are July and August (85.6°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in December: 48.9°F

The month with the highest average low temperature is July (77.4°F).
The coldest month (with the lowest average low temperature) is January (43.7°F).

Average pressure in December
Oak Island, NC

Average pressure in December - Oak Island, 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
Oak Island, NC

Average wind speed in December - Oak Island, NC
  • Average wind speed in December: 10.8mph

The windiest month (with the highest average wind speed) is February (11.6mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

Average humidity in December
Oak Island, NC

Average humidity in December - Oak Island, NC
  • Average humidity in December: 77%

The month with the highest relative humidity is June (78%).
The months with the lowest relative humidity are January, March, October and November (74%).

Average rainfall in December
Oak Island, NC

Average rainfall in December - Oak Island, NC
  • Average rainfall in December: 2.28"

The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is January (0.83").

Average rainfall days in December
Oak Island, NC

Average rainfall days in December - Oak Island, NC
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is November (8.4 days).

Average snowfall in December
Oak Island, NC

Average snowfall in December - Oak Island, NC
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Oak Island, NC

Average snowfall days in December - Oak Island, NC
  • Average snowfall days in December: 0.1 days

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

Average sea temperature in December
Oak Island, NC

Average sea temperature in December - Oak Island, 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
Oak Island, NC

Average daylight in December / Average sunshine in December - Oak Island, 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 months with the most sunshine are June and July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Oak Island, NC

Average sunshine days in December - Oak Island, NC
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is August (7.8 days).

Average UV index in December
Oak Island, NC

Average UV index in December - Oak Island, 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
Oak Island, NC

Average cloud cover in December - Oak Island, NC
  • Average cloud cover in December: 41

The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 26).

Average visibility in December
Oak Island, NC

Average visibility in December - Oak Island, 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).

Oak Island, North Carolina, USA

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