January weather forecastSeaside Heights, NJ
January
Weather in January
A new year in Seaside Heights, New Jersey, commences with weather conditions that are mostly cold and humid. The days are often overcast, with sunlight only gracing the township for an average of 5.2 hours per day. Notably, snowfall occurs for about four days, with a peak accumulation of 1.34" (34mm). January leans toward being blustery with northerly winds that underscore the chilly conditions. Experienced locals know this is a time when bundling up becomes second nature.Temperature
In Seaside Heights, the month of January is known for its lowest average temperatures, reaching a high of 39°F (3.9°C) and a low of 30.2°F (-1°C).Humidity
The months with the lowest humidity are January and November, with an average relative humidity of 74%.Rainfall
The month with the least rainfall is January, when the rain falls for 9 days and typically collects 2.01" (51mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Seaside Heights. The month with the most snowfall is January, when snow falls for 4.4 days and typically aggregates up to 1.34" (34mm) of snow.Ocean temperature
In Seaside Heights, the average seawater temperature in January is 43.3°F (6.3°C).Note: Beware of 43.3°F (6.3°C) waters at 55.4°F (13°C), they're uninviting, and a dip below 50°F (10°C) has risks of breath loss and cold shock, contingent on health.
Daylight
In Seaside Heights, the average length of the day in January is 9h and 43min.On the first day of January, sunrise is at 7:17 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:13 pm EST.
Sunshine
The average sunshine in January is 5.2h.UV index
The months with the lowest UV index in Seaside Heights are January through March and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 during January leads to these advisories:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Seaside Heights, NJ
- Average high temperature in January: 39°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 January: 30.2°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 January
Seaside Heights, NJ
- Average pressure in January: 30.07"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 January
Seaside Heights, NJ
- Average wind speed in January: 13.5mph
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 January
Seaside Heights, NJ
- Average humidity in January: 74%
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 January
Seaside Heights, NJ
- Average rainfall in January: 2.01"
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 January
Seaside Heights, NJ
- Average rainfall days in January: 9 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 January
Seaside Heights, NJ
- Average snowfall in January: 1.34"
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 January
Seaside Heights, NJ
- Average snowfall days in January: 4.4 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 January
Seaside Heights, NJ
- Average sea temperature in January: 43.3°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 January /
Average sunshine in January
Seaside Heights, NJ
- Average daylight in January: 9h and 42min
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 January: 5h and 12min
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 January
Seaside Heights, NJ
- Average sunshine days in January: 17.8 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 January
Seaside Heights, NJ
- Average UV index in January: 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 January
Seaside Heights, NJ
- Average cloud cover in January: 43
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 January
Seaside Heights, NJ
- Average visibility in January: 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).
