December weather forecast
Topsail Beach, NC

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Weather in December

As the year draws to a close, December greets Topsail Beach with the advent of the winter chill, the temperature hovering at an average high of 58.5°F (14.7°C). The sea temperature descends further to 62.7°F (17.1°C), marking a completion of the temperature's cyclical journey throughout the year. Dwindling daylight hours and a lower UV index exhibit characteristics typical of the winter season. Interestingly, an anomaly is noted in the month's snowfall, registering 0.04" (1mm), despite no recorded snowfall in November. This emergence of snowfall, even though minuscule, symbolizes the cautious onset of snowing conditions in the coming new year.

Temperature

Entering December, Topsail Beach's average high-temperature reads a mild 58.5°F (14.7°C), indicating a close resemblance to the previous month's climate. Throughout December, an average low-temperature of 47.3°F (8.5°C) is expected in Topsail Beach.

Humidity

August and December, with an average relative humidity of 77%, are the most humid months in Topsail Beach.

Rainfall

In Topsail Beach, North Carolina, in December, it is raining for 9.6 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, in Topsail Beach, there are 150.4 rainfall days, and 20.79" (528mm) of precipitation is accumulated.

Snowfall

January, February and December are months with snowfall. The months with the most snowfall are January, February and December, with an average 0.04" (1mm) of accumulated snow.

Ocean temperature

In December, the average ocean temperature in Topsail Beach, North Carolina, is 62.6°F (17°C).
Note: For most people, a water temperature of 62.6°F (17°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, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 6:59 am and sunset at 5:00 pm. On the last day of December, sunrise is at 7:16 am and sunset at 5:10 pm EST.

Sunshine

With an average of 5.6h of sunshine, December has the least sunshine of the year.

UV index

In December, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 4 translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What are the temperatures in Topsail Beach in December?

In December, the average high-temperature and low-temperature are 58.5°F (14.7°C) and 47.3°F (8.5°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

What is the most humid month in Topsail Beach?

August and December, with an average relative humidity of 77%, are most humid months in Topsail Beach.

What is the average humidity in December in Topsail Beach?

In Topsail Beach, the average relative humidity in December is 77%.

How much does it rain in Topsail Beach in December?

In Topsail Beach, North Carolina, in December, during 9.6 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When does it snow the most in Topsail Beach?

The months with the most snowfall are January, February and December, with an average 0.04" (1mm) of accumulated snow.

When does it start snowing in Topsail Beach?

December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

How cold is the water in December in Topsail Beach?

In Topsail Beach, the average seawater temperature in December is 62.6°F (17°C). For most, swimming in 62.6°F (17°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the month with the shortest days in Topsail Beach?

The month with the shortest days in Topsail Beach, North Carolina, is December, with an average of 9h and 54min of daylight.

How many hours of daylight does Topsail Beach have in December?

In December, the average day length in Topsail Beach, North Carolina, is 9h and 54min.

What time are sunrise and sunset in December in Topsail Beach?

On the first day of December in Topsail Beach, North Carolina, sunrise is at 6:59 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:10 pm EST.

What is the month with the least sunshine in Topsail Beach?

December has the least sunshine of the year in Topsail Beach, with an average of 5.6h of sunshine.

How many hours of sunshine does Topsail Beach have in December?

The average sunshine duration in December in Topsail Beach is 5.6h.

What is the UV index reading in December in Topsail Beach?

The average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Topsail Beach, NC

Average temperature in December - Topsail Beach, NC
  • Average high temperature in December: 58.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (54.5°F).

  • Average low temperature in December: 47.3°F

The month with the highest average low temperature is July (77°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

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Average pressure in December
Topsail Beach, NC

Average pressure in December - Topsail Beach, 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
Topsail Beach, NC

Average wind speed in December - Topsail Beach, 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 (8.2mph).

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Average humidity in December
Topsail Beach, NC

Average humidity in December - Topsail Beach, NC
  • Average humidity in December: 77%

The months with the highest relative humidity are August and December (77%).
The months with the lowest relative humidity are January and March (73%).

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Average rainfall in December
Topsail Beach, NC

Average rainfall in December - Topsail Beach, NC
  • Average rainfall in December: 1.81"

The wettest month (with the highest rainfall) is September (2.91").
The driest month (with the least rainfall) is January (0.79").

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Average rainfall days in December
Topsail Beach, NC

Average rainfall days in December - Topsail Beach, NC
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is November (8.2 days).

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Average snowfall in December
Topsail Beach, NC

Average snowfall in December - Topsail Beach, NC
  • Average snowfall in December: 0.04"

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

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Average snowfall days in December
Topsail Beach, NC

Average snowfall days in December - Topsail Beach, NC
  • Average snowfall days in December: 0.1 days

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

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Average sea temperature in December
Topsail Beach, NC

Average sea temperature in December - Topsail Beach, NC
  • Average sea temperature in December: 62.7°F

The best month for swimming (with the highest average sea temperature) is August (82.8°F).
The coldest month (with the lowest average sea temperature) is February (57.5°F).

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Average daylight in December /
Average sunshine in December
Topsail Beach, NC

Average daylight in December / Average sunshine in December - Topsail Beach, 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 4min

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 36min).

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Average sunshine days in December
Topsail Beach, NC

Average sunshine days in December - Topsail Beach, NC
  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (8.2 days).

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Average UV index in December
Topsail Beach, NC

Average UV index in December - Topsail Beach, 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
Topsail Beach, NC

Average cloud cover in December - Topsail Beach, NC
  • Average cloud cover in December: 39

The months with the most cloud cover are February and December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).

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Average visibility in December
Topsail Beach, NC

Average visibility in December - Topsail Beach, 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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Topsail Beach, North Carolina, USA

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