January weather forecast
Seaside Park, NJ

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Weather in January

January, the same as December, is a wintry winter month in Seaside Park, New Jersey, with an average temperature varying between 30.2°F (-1°C) and 39°F (3.9°C).

Temperature

The lowest temperatures are recorded in January, with averages 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 in Seaside Park, New Jersey, are January and November, with an average relative humidity of 74%.

Rainfall

January is the month with the least rainfall in Seaside Park, New Jersey. Rain falls for 9 days and accumulates 2.01" (51mm) of precipitation.

Snowfall

Months with snowfall in Seaside Park are January through April, November and December. January is the month with the most snowfall in Seaside Park. Snow falls for 4.4 days and accumulates 1.34" (34mm) of snow.

Ocean temperature

In January, the average ocean temperature in Seaside Park is 43.3°F (6.3°C).
Note: Taking a dip in 43.3°F (6.3°C) can be perilous. Submersion in temperatures under 50°F (10°C) triggers severe cold shock accompanied by hyperventilation.

Daylight

In January, the average length of the day is 9h and 43min.
On the first day of the month, sunrise is at 7:17 am and sunset at 4:41 pm. On the last day of January, in Seaside Park, sunrise is at 7:05 am and sunset at 5:13 pm EST.

Sunshine

In January, the average sunshine is 5.2h.

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 estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 2 during January translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What is the coldest time of year in Seaside Park?

In Seaside Park, January is the month with the lowest recorded average temperatures, measuring a high of 39°F (3.9°C) and a low of 30.2°F (-1°C).

Is January cold in Seaside Park?

In January, in Seaside Park, the average high-temperature is 39°F (3.9°C), and the average low-temperature is 30.2°F (-1°C).

What are the least humid months in Seaside Park?

The months with the lowest humidity in Seaside Park are January and November, with an average relative humidity of 74%.

What is the average humidity in January in Seaside Park?

The average relative humidity in January in Seaside Park, New Jersey, is 74%.

What is the driest month in Seaside Park?

January is the month with the least rainfall. Rain falls for 9 days and accumulates 2.01" (51mm) of precipitation.

How much does it rain in Seaside Park in January?

In Seaside Park, New Jersey, in January, it is raining for 9 days, with typically 2.01" (51mm) of accumulated precipitation.

What is the snowiest month in Seaside Park?

January is the month with the most snowfall. Snow falls for 4.4 days and accumulates 1.34" (34mm) of snow.

How many days does it snow in January in Seaside Park?

In Seaside Park, in January, during 4.4 snowfall days, 1.34" (34mm) of snow is typically accumulated.

How cold is the water in January in Seaside Park?

In January, the average ocean temperature in Seaside Park is 43.3°F (6.3°C). Swimming in 43.3°F (6.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in January in Seaside Park?

The average day length in January is 9h and 43min.

What time are sunrise and sunset in January in Seaside Park?

In January, on the first day of the month, 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.

How long on average sun shines in January in Seaside Park?

In January, the average sunshine duration in Seaside Park, New Jersey, is 5.2h.

What is the month with the lowest UV index in Seaside Park?

January through March and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in January in Seaside Park?

In January, the average daily maximum UV index in Seaside Park is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
45.1°F 7.3°C
39°F 3.9°C
41°F 5°C
Average low temperature
37.8°F 3.2°C
30.2°F -1°C
31.8°F -0.1°C
Average pressure
30.08" 764mmHg
30.07" 764mmHg
30.04" 763mmHg
Average wind speed
12.9mph 20.8km/h
13.5mph 21.7km/h
13.2mph 21.2km/h
Average max. wind speed
13.7mph 22km/h
14.3mph 23km/h
13.9mph 22.4km/h
Average wind speed gusts
19.3mph 31.1km/h
20mph 32.2km/h
20.5mph 33km/h
Average humidity
76%
74%
76%
Average rainfall
3.7" 94mm
2.01" 51mm
2.52" 64mm
Average rainfall days
11.8
9
10.1
Average snowfall
1.1" 28mm
1.34" 34mm
0.94" 24mm
Average snowfall days
1.9
4.4
3.9
Average sea temperature
48.5°F 9.2°C
43.3°F 6.3°C
40.8°F 4.9°C
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
5h 1min
5h 1min
4h 5min
Average sunshine days
15.9
17.8
13.5
Average UV index
2
2
2
Average cloud cover
47%
43%
48%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Seaside Park, NJ

Average temperature in January - Seaside Park, 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).

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Average pressure in January
Seaside Park, NJ

Average pressure in January - Seaside Park, 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).

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Average wind speed in January
Seaside Park, NJ

Average wind speed in January - Seaside Park, 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).

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Average humidity in January
Seaside Park, NJ

Average humidity in January - Seaside Park, 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%).

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Average rainfall in January
Seaside Park, NJ

Average rainfall in January - Seaside Park, 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").

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Average rainfall days in January
Seaside Park, NJ

Average rainfall days in January - Seaside Park, 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).

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Average snowfall in January
Seaside Park, NJ

Average snowfall in January - Seaside Park, 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").

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Average snowfall days in January
Seaside Park, NJ

Average snowfall days in January - Seaside Park, 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).

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Average sea temperature in January
Seaside Park, NJ

Average sea temperature in January - Seaside Park, 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).

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Average daylight in January /
Average sunshine in January
Seaside Park, NJ

Average daylight in January / Average sunshine in January - Seaside Park, NJ
  • Average daylight in January: 9h and 4min

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 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).

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Average sunshine days in January
Seaside Park, NJ

Average sunshine days in January - Seaside Park, 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).

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Average UV index in January
Seaside Park, NJ

Average UV index in January - Seaside Park, 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).

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Average cloud cover in January
Seaside Park, NJ

Average cloud cover in January - Seaside Park, 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).

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Average visibility in January
Seaside Park, NJ

Average visibility in January - Seaside Park, 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).

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Seaside Park, New Jersey, USA

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