January weather forecast
Bayonne, NJ

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Weather in January

Beginning the year, January, in Bayonne, New Jersey is characterized by cold temperatures and a moderate amount of precipitation. The area sees the lowest sea temperature of the year, with the average around 41.7°F (5.4°C). While the month experiences shorter days compared to the rest of the year, the city does witness an average of 5.2 hours of sunshine per day, offering some respite to residents. January is notable for being the windiest month, which can lead to frigid conditions when combined with the low temperatures prevalent. Snowfall during this month is relatively moderate, making for a winter that can be managed with appropriate clothing and proactiveness.

Temperature

Bayonne's January weather, marked by an average high temperature of 36.5°F (2.5°C) and an average low temperature of 26.1°F (-3.3°C), is the coldest in the year.

Humidity

The average relative humidity in January in Bayonne is 74%.

Rainfall

In Bayonne, during January, the rain falls for 9.8 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 162 rainfall days, and 31.97" (812mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Bayonne, in January, snow falls for 5.9 days, with typically accumulated 1.65" (42mm) of snow. Throughout the year, in Bayonne, there are 20.2 snowfall days, and 7.6" (193mm) of snow is accumulated.

Ocean temperature

In Bayonne, the average seawater temperature in January is 41.7°F (5.4°C).
Note: Swimming in 41.7°F (5.4°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.

Daylight

The average length of the day in January is 9h and 40min.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:39 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:12 pm EST.

Sunshine

The average sunshine in January in Bayonne, New Jersey, is 5.2h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Enhance your sun protection with tightly woven, yet airy clothing. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

What is the coldest month in Bayonne?

The month of January, characterized by an average high of 36.5°F (2.5°C) and a low of 26.1°F (-3.3°C), is recognized as the coldest in Bayonne.

How cold is January in Bayonne?

The high-temperature, in January, in Bayonne, is 36.5°F (2.5°C), while the low-temperature averages to 26.1°F (-3.3°C).

What is the average humidity in January in Bayonne?

The average relative humidity in January is 74%.

How many days does it rain in January in Bayonne?

In Bayonne, New Jersey, during January, the rain falls for 9.8 days and regularly aggregates up to 1.97" (50mm) of precipitation.

How many days does it snow in January in Bayonne?

In Bayonne, New Jersey, in January, snow falls for 5.9 days, with typically accumulated 1.65" (42mm) of snow.

How cold is the water in January in Bayonne?

In Bayonne, in January, the average water temperature is 41.7°F (5.4°C). 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.

What is the average length of the day in January in Bayonne?

The average day length in January in Bayonne is 9h and 40min.

What time are sunrise and sunset in January in Bayonne?

On the first day of January, sunrise is at 7:20 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:12 pm EST.

How many hours of sunshine does Bayonne have in January?

The average sunshine duration in January is 5.2h.

What is the month with the lowest UV index in Bayonne?

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

What is the UV index reading in January in Bayonne?

In January, the average daily maximum UV index in Bayonne is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
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 January
Bayonne, NJ

Average temperature in January - Bayonne, NJ
  • Average high temperature in January: 36.5°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in January: 26.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in January
Bayonne, NJ

Average pressure in January - Bayonne, NJ
  • Average pressure in January: 30.06"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
Bayonne, NJ

Average wind speed in January - Bayonne, NJ
  • Average wind speed in January: 10.2mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in January
Bayonne, NJ

Average humidity in January - Bayonne, NJ
  • Average humidity in January: 74%

The months with the highest relative humidity are February, May and December (76%).
The month with the lowest relative humidity is August (72%).

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Average rainfall in January
Bayonne, NJ

Average rainfall in January - Bayonne, NJ
  • Average rainfall in January: 1.97"

The wettest months (with the highest rainfall) are July and December (3.35").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in January
Bayonne, NJ

Average rainfall days in January - Bayonne, NJ
  • Average rainfall days in January: 9.8 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in January
Bayonne, NJ

Average snowfall in January - Bayonne, NJ
  • Average snowfall in January: 1.65"

The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Bayonne, NJ

Average snowfall days in January - Bayonne, NJ
  • Average snowfall days in January: 5.9 days

The month with the highest number of snowfall days is January (5.9 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
Bayonne, NJ

Average sea temperature in January - Bayonne, NJ
  • Average sea temperature in January: 41.7°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

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Average daylight in January /
Average sunshine in January
Bayonne, NJ

Average daylight in January / Average sunshine in January - Bayonne, 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 18min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in January
Bayonne, NJ

Average sunshine days in January - Bayonne, NJ
  • Average sunshine days in January: 17.4 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (11.8 days).

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Average UV index in January
Bayonne, NJ

Average UV index in January - Bayonne, 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, November and December (UV index 2).

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Average cloud cover in January
Bayonne, NJ

Average cloud cover in January - Bayonne, NJ
  • Average cloud cover in January: 43

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in January
Bayonne, NJ

Average visibility in January - Bayonne, 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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Bayonne, New Jersey, USA

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