December weather forecast
Oak Island, NC

Weather in December

December, the first month of the winter in Oak Island, is also a moderate month, with an average temperature ranging between min 48.9°F (9.4°C) and max 59.4°F (15.2°C).

Temperature

In December, the average high-temperature is almost the same as in November - a moderate 59.4°F (15.2°C). In December, the average low-temperature is 48.9°F (9.4°C).

Humidity

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

Rainfall

In Oak Island, during December, the rain falls for 10.7 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, there are 157.9 rainfall days, and 24.69" (627mm) of precipitation is accumulated.

Snowfall

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

Ocean temperature

In Oak Island, the average seawater temperature in December is 61.5°F (16.4°C).
Note: 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).

Daylight

December has the shortest days of the year in Oak Island, with an average of 9h and 56min of daylight.
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

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

UV index

The average daily maximum UV index in December in Oak Island is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Oak Island?

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

What is the average humidity in December in Oak Island?

The average relative humidity in December in Oak Island is 77%.

How much does it rain in Oak Island in December?

In Oak Island, North Carolina, 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?

February through December are months without snowfall.

Does it snow in Oak Island 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?

In Oak Island, North Carolina, the average seawater temperature in December is 61.5°F (16.4°C). Swimming in 61.5°F (16.4°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

What is the month with the shortest days in Oak Island?

The month with the shortest days is December, with an average of 9h and 56min of daylight.

How many hours of daylight does Oak Island have in December?

The average day length in December in Oak Island, North Carolina, is 9h and 56min.

When are sunrise and sunset in December in Oak Island?

In December, on the first day of the month, 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.

What is the month with the least sunshine in Oak Island?

With an average of 5.5h of sunshine, December has the least sunshine of the year in Oak Island, North Carolina.

How long on average sun shines in December in Oak Island?

The average sunshine duration in December is 5.5h.

What is the UV index reading in December in Oak Island?

In December, the average daily maximum UV index in Oak Island, North Carolina, is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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 56min

The month with the longest days is June (Average daylight: 14h and 23min).
The month with the shortest days is December (Average daylight: 9h and 56min).

  • Average sunshine in December: 5h and 30min

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).

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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).

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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).

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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).

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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).

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