Myrtle Beach
South Carolina, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Myrtle Beach, SC

The glorious Myrtle Beach in South Carolina, with lit city buildings
The glorious Myrtle Beach in South Carolina, with lit city buildings
December, the first month of the winter, in Myrtle Beach, is also a moderate month, with average temperature fluctuating between 37.2°F (2.9°C) and 58.3°F (14.6°C).

Temperature

In Myrtle Beach, the average high-temperature in December drops, from an enjoyable 67.8°F (19.9°C) in November, to a mild 58.3°F (14.6°C). The average low-temperature, in Myrtle Beach, is 37.2°F (2.9°C).

Rainfall

In Myrtle Beach, during 7.6 rainfall days, 3.3" (83.1mm) of precipitation is typically accumulated. In Myrtle Beach, during the entire year, the rain falls for 92.8 days and collects up to 48.3" (1225.7mm) of precipitation.

Snowfall

Months with snowfall are February and December. December is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.6" (15.2mm) of snow.

Ocean temperature

In Myrtle Beach, South Carolina, the average water temperature is 63.3°F (17.4°C). For most, swimming in 63.3°F (17.4°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 in Myrtle Beach is December, with an average of 9.9h of daylight.

Sunshine

Months with the least sunshine are January, November and December, with an average of 6h of sunshine.

UV index

Months with the lowest UV index in Myrtle Beach are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for average individuals.
In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. 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.

What is the temperature in December in Myrtle Beach?

In December, the average high-temperature is 58.3°F (14.6°C), and the average low-temperature is 37.2°F (2.9°C).

How much does it rain in Myrtle Beach in December?

In December, the rain falls for 7.6 days. Throughout December, 3.3" (83.1mm) of precipitation is accumulated.

When does it start to snow in Myrtle Beach?

December is the first month it typically snows in Myrtle Beach, South Carolina. Throughout December, in the average 0.1 snowfall days, it receives 0.6" (15.2mm) of snow.

When does it snow the most in Myrtle Beach?

The month with the most snowfall is December when snow falls for 0.1 days and typically aggregates up to 0.6" (15.2mm) of snow.

What is the ocean temperature in December in Myrtle Beach?

In Myrtle Beach, the average seawater temperature in December is 63.3°F (17.4°C). Swimming in 63.3°F (17.4°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 Myrtle Beach?

With an average of 9.9h of daylight, December has the shortest days of the year in Myrtle Beach, South Carolina.

What is the average length of the day in December in Myrtle Beach?

In Myrtle Beach, the average length of the day in December is 9.9h.

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

Months with the least sunshine in Myrtle Beach are January, November and December, with an average of 6h of sunshine.

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

The average sunshine in December in Myrtle Beach is 6h.

What are the months with the lowest UV index in Myrtle Beach?

Months with the lowest UV index in Myrtle Beach, South Carolina, are January and December, with an average maximum UV index of 3.

What is the UV index intensity in December in Myrtle Beach?

In Myrtle Beach, South Carolina, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in December - Myrtle Beach, SC
  • Average high temperature in December: 58.2°F

The warmest month (with the highest average high temperature) is July (87.7°F).
The month with the lowest average high temperature is January (56.3°F).

  • Average low temperature in December: 37.3°F

The month with the highest average low temperature is July (72.8°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).

Average rainfall in December - Myrtle Beach, SC
  • Average rainfall in December: 3.3"

The wettest month (with the highest rainfall) is September (6.3").
Driest months (with the lowest rainfall) are April and November (2.5").

Average rainfall days in December - Myrtle Beach, SC
  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is August (10.6 days).
The month with the lowest number of rainy days is November (5.7 days).

Average snowfall in December - Myrtle Beach, SC
  • Average snowfall in December: 0.6"

The month with the highest snowfall is December (0.6").
Months with the lowest snowfall are January, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December - Myrtle Beach, SC
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is December (0.1 days).
Months with the lowest number of snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average sea temperature in December - Myrtle Beach, SC
  • Average sea temperature in December: 63.3°F

The best month for swimming (with the highest average sea temperature) is August (82.9°F).
The coldest month (with the lowest average sea temperature) is March (57.7°F).

Average daylight in December / Average sunshine in December - Myrtle Beach, SC
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 6h

Months with most sunshine are April, May, June and July (Average sunshine: 9h).
Months with least sunshine are January, November and December (Average sunshine: 6).

Average UV index in December - Myrtle Beach, SC
  • Average UV index in December: 3

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