December weather forecast and climate
Ocean City, MD

The Ocean city in Maryland, with water on both sides of the city
The Ocean city in Maryland, with water on both sides of the city

Weather in December

December, the first month of the winter, in Ocean City, is still a chilly month, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 48.4°F (9.1°C).

Temperature

In Ocean City, the average high-temperature slightly decreases, from a moderate 55.4°F (13°C) in November, to a frosty 48.4°F (9.1°C). In Ocean City, Maryland,, the average low-temperature is 41.2°F (5.1°C).

Humidity

In December, the average relative humidity in Ocean City is 75%.

Rainfall

In Ocean City, during 11.5 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, in Ocean City, there are 150.3 rainfall days, and 23.11" (587mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Ocean City are January through March, November and December. In Ocean City, during 1.5 snowfall days, 0.24" (6mm) of snow is typically accumulated. In Ocean City, during the entire year, snow falls for 8.1 days, and aggregates up to 1.22" (31mm) of snow.

Ocean temperature

In Ocean City, the average seawater temperature in December is 50.4°F (10.2°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

With an average of 9.5h of daylight, December has the shortest days of the year.

Sunshine

In December, the average sunshine is 5.3h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 average humidity in December in Ocean City?

In December, the average relative humidity in Ocean City is 75%.

How much does it rain in Ocean City in December?

In Ocean City, in December, during 11.5 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

How many days does it snow in December in Ocean City?

In December, it is snowing for 1.5 days. Throughout December, 0.24" (6mm) of snow is accumulated.

What is the ocean temperature in December in Ocean City?

In Ocean City, Maryland, in December, the average water temperature is 50.4°F (10.2°C). Swimming in 50.4°F (10.2°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the month with the shortest days in Ocean City?

December has the shortest days of the year in Ocean City, with an average of 9.5h of daylight.

What is the average length of the day in December in Ocean City?

In December, the average length of the day in Ocean City is 9.5h.

How long on average sun shines in December in Ocean City?

In Ocean City, Maryland, the average sunshine in December is 5.3h.

When is the lowest UV index in Ocean City?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Ocean City.

What is the UV index reading in December in Ocean City?

In December, the average daily maximum UV index in Ocean City, Maryland, is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays.

Average temperature in December
Ocean City, MD

Average temperature in December - Ocean City, MD
  • Average high temperature in December: 48.4°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in December: 41.2°F

The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

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Average pressure in December
Ocean City, MD

Average pressure in December - Ocean City, MD
  • Average pressure in December: 30.1"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in December
Ocean City, MD

Average wind speed in December - Ocean City, MD
  • Average wind speed in December: 13.3mph

The windiest month (with the highest average wind speed) is January (13.9mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).

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Average humidity in December
Ocean City, MD

Average humidity in December - Ocean City, MD
  • Average humidity in December: 75%

The month with the highest relative humidity is May (82%).
Months with the lowest relative humidity are January and November (74%).

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Average rainfall in December
Ocean City, MD

Average rainfall in December - Ocean City, MD
  • Average rainfall in December: 1.73"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (1.46").

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Average rainfall days in December
Ocean City, MD

Average rainfall days in December - Ocean City, MD
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in December
Ocean City, MD

Average snowfall in December - Ocean City, MD
  • Average snowfall in December: 0.24"

The month with the highest snowfall is February (0.39").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Ocean City, MD

Average snowfall days in December - Ocean City, MD
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is January (2.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in December
Ocean City, MD

Average sea temperature in December - Ocean City, MD
  • Average sea temperature in December: 50.3°F

The best month for swimming (with the highest average sea temperature) is August (77.5°F).
The coldest month (with the lowest average sea temperature) is February (41.9°F).

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Average daylight in December /
Average sunshine in December
Ocean City, MD

Average daylight in December / Average sunshine in December - Ocean City, MD
  • Average daylight in December: 9.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in December: 5.3h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is February (Average sunshine: 5.2h).

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Average sunshine days in December
Ocean City, MD

Average sunshine days in December - Ocean City, MD
  • Average sunshine days in December: 16.4 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (12.5 days).

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Average UV index in December
Ocean City, MD

Average UV index in December - Ocean City, MD
  • Average UV index in December: 2

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in December
Ocean City, MD

Average cloud cover in December - Ocean City, MD
  • Average cloud cover in December: 43

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).

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Average visibility in December
Ocean City, MD

Average visibility in December - Ocean City, MD
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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