December weather forecastSeaside Park, NJ
December
Weather in December
The first month of the winter, December, is still a chilly month in Seaside Park, New Jersey, with an average temperature fluctuating between 37.8°F (3.2°C) and 45.1°F (7.3°C).Temperature
Seaside Park's December weather features a light decline in high-temperatures, reducing from a cool 53.2°F (11.8°C) in November to a chilly 45.1°F (7.3°C). The temperature in Seaside Park during December nights demonstrates a small drop from the daytime highs, settling to an average of 37.8°F (3.2°C).Humidity
The average relative humidity in December is 76%.Rainfall
The month with the most rainfall is December, when the rain falls for 11.8 days and typically aggregates up to 3.7" (94mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Seaside Park, during December, snow falls for 1.9 days and regularly aggregates up to 1.1" (28mm) of snow. Throughout the year, there are 13.1 snowfall days, and 4.65" (118mm) of snow is accumulated.Ocean temperature
In Seaside Park, the average seawater temperature in December is 48.6°F (9.2°C).Note: Being in 48.6°F (9.2°C) waters at 55.4°F (13°C) is discomforting, but anything below 50°F (10°C) can jeopardize breathing and induce cold shock, factoring in physical endurance.
Daylight
December has the shortest days of the year in Seaside Park, New Jersey, with an average of 9h and 24min of daylight.On the first day of December in Seaside Park, sunrise is at 6:59 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:41 pm EST.
Sunshine
In December, the average sunshine in Seaside Park is 5.1h.UV index
January through March 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 unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Seaside Park, NJ
- Average high temperature in December: 45.1°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 37.8°F
The month with the highest average low temperature is August (71.6°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in December
Seaside Park, 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
Seaside Park, NJ
- Average wind speed in December: 12.9mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (8.8mph).
Average humidity in December
Seaside Park, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (81%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in December
Seaside Park, NJ
- Average rainfall in December: 3.7"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in December
Seaside Park, NJ
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Seaside Park, NJ
- Average snowfall in December: 1.1"
The month with the highest snowfall is January (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Seaside Park, NJ
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Seaside Park, NJ
- Average sea temperature in December: 48.5°F
The best month for swimming (with the highest average sea temperature) is August (75.8°F).
The coldest month (with the lowest average sea temperature) is February (40.8°F).
Average daylight in December /
Average sunshine in December
Seaside Park, NJ
- Average daylight in December: 9h and 24min
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 6min
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
Seaside Park, NJ
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in December
Seaside Park, 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, March and December (UV index 2).
Average cloud cover in December
Seaside Park, NJ
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Seaside Park, 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).
