December weather forecast
Hatteras, NC

Weather in December

The first month of the winter, December, is also a moderate month in Hatteras, North Carolina, with average temperature ranging between max 59°F (15°C) and min 52.2°F (11.2°C).

Temperature

In Hatteras, the average high-temperature in December is almost the same as in November - a moderate 59°F (15°C). In December, the average low-temperature is 52.2°F (11.2°C).

Humidity

The average relative humidity in December is 76%.

Rainfall

In Hatteras, during December, the rain falls for 6.5 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Hatteras, North Carolina, during the entire year, the rain falls for 100.9 days and collects up to 8.58" (218mm) of precipitation.

Snowfall

Months with snowfall in Hatteras are January through March and December. Months with the most snowfall days in Hatteras, North Carolina, are January through March and December, with an average of 0.1 snowfall days.

Ocean temperature

In Hatteras, the average seawater temperature in December is 66.2°F (19°C).
Note: For most, swimming in 66.2°F (19°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).

Daylight

The month with the shortest days is December, with an average of 9.8h of daylight.

Sunshine

In Hatteras, the average sunshine is 5.5h.

UV index

The average daily maximum UV index in Hatteras is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in Hatteras?

In December, the average relative humidity in Hatteras is 76%.

How much does it rain in Hatteras in December?

In Hatteras, North Carolina, in December, during 6.5 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

When does it snow the most in Hatteras?

Months with the most snowfall days are January through March and December, with an average of 0.1 snowfall days.

When does it start to snow in Hatteras?

December is the first month it typically snows in Hatteras, North Carolina. Throughout December, there are 0.1 snowfall days.

How cold is the water in December in Hatteras?

In December, the average ocean temperature in Hatteras is 66.2°F (19°C). For most, swimming in 66.2°F (19°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 Hatteras?

The month with the shortest days in Hatteras is December, with an average of 9.8h of daylight.

How many hours of daylight does Hatteras have in December?

In Hatteras, North Carolina, the average length of the day in December is 9.8h.

How many hours of sunshine does Hatteras have in December?

In Hatteras, North Carolina, the average sunshine in December is 5.5h.

How high is the UV index in December in Hatteras?

In Hatteras, the average daily maximum UV index in December is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.

Average temperature in December
Hatteras, NC

Average temperature in December - Hatteras, NC
  • Average high temperature in December: 15°C

The warmest month (with the highest average high temperature) is July (27.5°C).
The month with the lowest average high temperature is January (12.5°C).

  • Average low temperature in December: 11.2°C

The month with the highest average low temperature is July (25.8°C).
The coldest month (with the lowest average low temperature) is January (7.8°C).

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Average pressure in December
Hatteras, NC

Average pressure in December - Hatteras, NC
  • Average pressure in December: 1019.7mbar

The months with the highest atmospheric pressure are November and December (1019.7mbar).
The month with the lowest atmospheric pressure is June (1015.1mbar).

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Average wind speed in December
Hatteras, NC

Average wind speed in December - Hatteras, NC
  • Average wind speed in December: 25.4km/h

The windiest month (with the highest average wind speed) is March (27.3km/h).
The calmest month (with the lowest average wind speed) is August (19.3km/h).

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Average humidity in December
Hatteras, NC

Average humidity in December - Hatteras, NC
  • Average humidity in December: 76%

The months with the highest relative humidity are May, June and July (79%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in December
Hatteras, NC

Average rainfall in December - Hatteras, NC
  • Average rainfall in December: 19mm

The wettest month (with the highest rainfall) is August (27mm).
The driest month (with the least rainfall) is January (8mm).

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Average rainfall days in December
Hatteras, NC

Average rainfall days in December - Hatteras, NC
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is February (5.6 days).

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Average snowfall days in December
Hatteras, NC

Average snowfall days in December - Hatteras, NC
  • Average snowfall days in December: 0.1 days

The months with the highest number of snowfall days are January, February, March and December (0.1 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
Hatteras, NC

Average sea temperature in December - Hatteras, NC
  • Average sea temperature in December: 19°C

The best months for swimming (with the highest average sea temperature) are July and August (27°C).
The coldest month (with the lowest average sea temperature) is February (16°C).

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

Average daylight in December / Average sunshine in December - Hatteras, NC
  • Average daylight in December: 9h and 50min

The month with the longest days is June (Average daylight: 14h and 29min).
The month with the shortest days is December (Average daylight: 9h and 50min).

  • Average sunshine in December: 5.5h

The months with the most sunshine are June and July (Average sunshine: 10.9h).
The month with the least sunshine is February (Average sunshine: 5.3h).

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Average sunshine days in December
Hatteras, NC

Average sunshine days in December - Hatteras, NC
  • Average sunshine days in December: 21.6 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in December
Hatteras, NC

Average UV index in December - Hatteras, 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
Hatteras, NC

Average cloud cover in December - Hatteras, NC
  • Average cloud cover in December: 41

The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 26).

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Average visibility in December
Hatteras, NC

Average visibility in December - Hatteras, NC
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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