Hatteras
North Carolina, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Hatteras, NC

December, the first month of the winter, in Hatteras, is also a moderate month, with average temperature ranging between min 39.2°F (4°C) and max 55.4°F (13°C).

Temperature

In December, the average high-temperature drops, from a comfortable 64.4°F (18°C) in November, to a moderate 55.4°F (13°C). In December, the average low-temperature is 39.2°F (4°C).

Rainfall

In December, in Hatteras, the rain falls for 9 days. Throughout December, 4.1" (104mm) of precipitation is accumulated. In Hatteras, during the entire year, the rain falls for 113 days and collects up to 53.3" (1355mm) of precipitation.

Ocean temperature

In Hatteras, the average water temperature 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

With an average of 9.8h of daylight, December has the shortest days of the year.

Sunshine

Months with the least sunshine in Hatteras are January and December, with an average of 5h of sunshine.

UV index

Months with the lowest UV index in Hatteras are January, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sun damage is advised. 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.

What is the temperature in December in Hatteras?

In Hatteras, North Carolina, in December, the average high-temperature is 55.4°F (13°C), and the average low-temperature is 39.2°F (4°C).

How much does it rain in Hatteras in December?

In Hatteras, North Carolina, in December, during 9 rainfall days, 4.1" (104mm) of precipitation is typically accumulated.

How cold is the water in December in Hatteras?

In Hatteras, North Carolina, in December, the average water temperature is 66.2°F (19°C). For swimming, a surface water temperature of 66.2°F (19°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 Hatteras?

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

How many hours of daylight does Hatteras have in December?

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

What is the month with the least sunshine in Hatteras?

Months with the least sunshine are January and December, with an average of 5h of sunshine.

How many hours of sunshine does Hatteras have in December?

The average sunshine in December in Hatteras is 5h.

What is the month with the lowest UV index in Hatteras?

Months with the lowest UV index are January, November and December, with an average maximum UV index of 3.

How high is the UV index in December in Hatteras?

In Hatteras, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to the Sun's UV rays.
Average temperature in December - Hatteras, NC
  • Average high temperature in December: 55°F

Warmest months (with the highest average high temperature) are July and August (86°F).
The month with the lowest average high temperature is January (52°F).

  • Average low temperature in December: 39°F

Months with the highest average low temperature are July and August (72°F).
Coldest months (with the lowest average low temperature) are January and February (36°F).

Average rainfall in December - Hatteras, NC
  • Average rainfall in December: 4.1"

The wettest month (with the highest rainfall) is August (5.9").
The driest month (with the lowest rainfall) is April (3.3").

Average rainfall days in December - Hatteras, NC
  • Average rainfall days in December: 9 days

Months with the highest number of rainy days are July and August (11 days).
Months with the lowest number of rainy days are September, October and November (8 days).

Average sea temperature in December - Hatteras, NC
  • Average sea temperature in December: 66°F

Best months for swimming (with the highest average sea temperature) are July and August (81°F).
The coldest month (with the lowest average sea temperature) is February (61°F).

Average daylight in December / Average sunshine in December - Hatteras, NC
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 5h

Months with most sunshine are April, May, June, July and August (Average sunshine: 9h).
Months with least sunshine are January and December (Average sunshine: 5).

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

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January, November and December (UV index 3).