December weather forecast
Sea Bright, NJ

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Weather in December

The first month of the winter, December, is also a frosty month in Sea Bright, New Jersey, with an average temperature fluctuating between 36°F (2.2°C) and 44.2°F (6.8°C).

Temperature

Sea Bright in December experiences a gentle temperature dip, with average high-temperatures reducing from a fresh 52.3°F (11.3°C) in November to a frosty 44.2°F (6.8°C). Sea Bright records a mild decrease in temperature during the nights of December, averaging a wintry 36°F (2.2°C).

Humidity

The average relative humidity in December is 75%.

Rainfall

In Sea Bright, in December, it is raining for 9.2 days, with typically 1.18" (30mm) of accumulated precipitation. In Sea Bright, during the entire year, the rain falls for 125.1 days and collects up to 12.64" (321mm) of precipitation.

Snowfall

Months with snowfall are January through March, October and December. December is the month with the most snowfall. Snow falls for 3.3 days and accumulates 0.47" (12mm) of snow.

Ocean temperature

In Sea Bright, in December, the average water temperature is 48.2°F (9°C).
Note: If planning to swim in 48.2°F (9°C) under 50°F (10°C), wear a protective suit. Neglecting this advice might cause immediate cold shock and troubled breathing. A splash around 55.4°F (13°C) is not much warmer.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:30 pm. On the last day of December, in Sea Bright, sunrise is at 7:18 am and sunset at 4:39 pm EST.

Sunshine

In Sea Bright, the average sunshine in December is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In December, an average UV index of 2 transforms into the following instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

In December, the average high-temperature and low-temperature are 44.2°F (6.8°C) and 36°F (2.2°C) respectively.

What is the average humidity in December?

In Sea Bright, the average relative humidity in December is 75%.

How much does it rain in December?

In Sea Bright, New Jersey, in December, it is raining for 9.2 days, with typically 1.18" (30mm) of accumulated precipitation.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 3.3 days and accumulates 0.47" (12mm) of snow.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 3.3 snowfall days, it receives 0.47" (12mm) of snow.

How cold is the water in December?

In Sea Bright, in December, the average water temperature is 48.2°F (9°C). Swimming in 48.2°F (9°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 21min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:00 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:39 pm EST.

How many hours of sunshine does Sea Bright have in December?

The average sunshine duration in December is 5.1h.

When is the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Sea Bright.

How high is the UV index in December?

In Sea Bright, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sea Bright, NJ

Average temperature in December - Sea Bright, NJ
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 36°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in December
Sea Bright, NJ

Average pressure in December - Sea Bright, NJ
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Sea Bright, NJ

Average wind speed in December - Sea Bright, NJ
  • Average wind speed in December: 11.7mph

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

Average humidity in December
Sea Bright, NJ

Average humidity in December - Sea Bright, NJ
  • Average humidity in December: 75%

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

Average rainfall in December
Sea Bright, NJ

Average rainfall in December - Sea Bright, NJ
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in December
Sea Bright, NJ

Average rainfall days in December - Sea Bright, NJ
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in December
Sea Bright, NJ

Average snowfall in December - Sea Bright, NJ
  • Average snowfall in December: 0.47"

The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").

Average snowfall days in December
Sea Bright, NJ

Average snowfall days in December - Sea Bright, NJ
  • Average snowfall days in December: 3.3 days

The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

Average sea temperature in December
Sea Bright, NJ

Average sea temperature in December - Sea Bright, NJ
  • Average sea temperature in December: 48.2°F

The best month for swimming (with the highest average sea temperature) is August (74.5°F).
The coldest month (with the lowest average sea temperature) is February (40.1°F).

Average daylight in December /
Average sunshine in December
Sea Bright, NJ

Average daylight in December / Average sunshine in December - Sea Bright, NJ
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Sea Bright, NJ

Average sunshine days in December - Sea Bright, NJ
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is July (13 days).

Average UV index in December
Sea Bright, NJ

Average UV index in December - Sea Bright, NJ
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Sea Bright, NJ

Average cloud cover in December - Sea Bright, NJ
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in December
Sea Bright, NJ

Average visibility in December - Sea Bright, NJ
  • 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).

Sea Bright, New Jersey, USA

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