January weather forecast
Westhampton Beach, NY

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Weather in January

January, like December, in Westhampton Beach, New York, is an icy winter month, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 38.8°F (3.8°C).

Temperature

January, with an average high of 38.8°F (3.8°C) and a low of 31.1°F (-0.5°C), signifies the coldest month of the year.

Humidity

In Westhampton Beach, the average relative humidity in January is 73%.

Rainfall

January is the month with the least rainfall in Westhampton Beach. Rain falls for 7.8 days and accumulates 1.89" (48mm) of precipitation.

Snowfall

Months with snowfall are January through March, May and December. In Westhampton Beach, during January, snow falls for 3.7 days and regularly aggregates up to 0.94" (24mm) of snow. Throughout the year, in Westhampton Beach, New York, there are 12.9 snowfall days, and 4.45" (113mm) of snow is accumulated.

Ocean temperature

In January, the average ocean temperature is 40.8°F (4.9°C).
Note: In relation to swimming, this scenario is excessively cold, perilous, and a direct threat to life. Hypothermia strikes rapidly in the absence of insulated waterproof gear.

Daylight

In January, the average length of the day in Westhampton Beach is 9h and 38min.
On the first day of January, sunrise is at 7:14 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:06 pm EST.

Sunshine

In Westhampton Beach, the average sunshine in January is 5.1h.

UV index

The months with the lowest UV index in Westhampton Beach are January through March and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To cut down UV radiation exposure by about half, sport a wide-brim hat. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What part of the year is the coldest in Westhampton Beach?

Westhampton Beach's temperature records reveal January as the coldest month, marked by average highs of 38.8°F (3.8°C) and lows of 31.1°F (-0.5°C).

How cold does it get in Westhampton Beach in January?

The average high-temperature, in January, in Westhampton Beach, is 38.8°F (3.8°C), while the average low-temperature is 31.1°F (-0.5°C).

What is the average humidity in January in Westhampton Beach?

In Westhampton Beach, the average relative humidity in January is 73%.

What is the driest month in Westhampton Beach?

January is the month with the least rainfall in Westhampton Beach, New York. Rain falls for 7.8 days and accumulates 1.89" (48mm) of precipitation.

How much does it rain in Westhampton Beach in January?

In January, in Westhampton Beach, the rain falls for 7.8 days. Throughout January, 1.89" (48mm) of precipitation is accumulated.

How many days does it snow in January in Westhampton Beach?

In January, in Westhampton Beach, New York, it is snowing for 3.7 days. Throughout January, 0.94" (24mm) of snow is accumulated.

How cold is the water in January in Westhampton Beach?

In Westhampton Beach, New York, in January, the average water temperature is 40.8°F (4.9°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

What is the average length of the day in January in Westhampton Beach?

The average day length in January is 9h and 38min.

When is the sunrise / sunset in January in Westhampton Beach?

In January, on the first day of the month, sunrise is at 7:14 am and sunset at 4:33 pm. On the last day of the month, in Westhampton Beach, New York, sunrise is at 7:01 am and sunset at 5:06 pm EST.

How many hours of sunshine does Westhampton Beach have in January?

The average sunshine duration in January is 5.1h.

When is the lowest UV index in Westhampton Beach?

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

What is the UV index reading in January in Westhampton Beach?

In Westhampton Beach, the average daily maximum UV index in January is 2. A UV Index reading 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
Westhampton Beach, NY

Average temperature in January - Westhampton Beach, NY
  • Average high temperature in January: 38.8°F

The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in January: 31.1°F

The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

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Average pressure in January
Westhampton Beach, NY

Average pressure in January - Westhampton Beach, NY
  • Average pressure in January: 30.04"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Westhampton Beach, NY

Average wind speed in January - Westhampton Beach, NY
  • Average wind speed in January: 15.4mph

The windiest month (with the highest average wind speed) is January (15.4mph).
The calmest month (with the lowest average wind speed) is July (10.2mph).

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Average humidity in January
Westhampton Beach, NY

Average humidity in January - Westhampton Beach, NY
  • Average humidity in January: 73%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (72%).

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Average rainfall in January
Westhampton Beach, NY

Average rainfall in January - Westhampton Beach, NY
  • Average rainfall in January: 1.89"

The wettest month (with the highest rainfall) is October (3.07").
The driest month (with the least rainfall) is January (1.89").

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Average rainfall days in January
Westhampton Beach, NY

Average rainfall days in January - Westhampton Beach, NY
  • Average rainfall days in January: 7.8 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in January
Westhampton Beach, NY

Average snowfall in January - Westhampton Beach, NY
  • Average snowfall in January: 0.94"

The month with the highest snowfall is March (1.54").
The months with the least snowfall are April, June, July, August, September, October and November (0").

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Average snowfall days in January
Westhampton Beach, NY

Average snowfall days in January - Westhampton Beach, NY
  • Average snowfall days in January: 3.7 days

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

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Average sea temperature in January
Westhampton Beach, NY

Average sea temperature in January - Westhampton Beach, NY
  • Average sea temperature in January: 40.8°F

The best month for swimming (with the highest average sea temperature) is August (73.7°F).
The coldest month (with the lowest average sea temperature) is February (38°F).

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Average daylight in January /
Average sunshine in January
Westhampton Beach, NY

Average daylight in January / Average sunshine in January - Westhampton Beach, NY
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 5h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in January
Westhampton Beach, NY

Average sunshine days in January - Westhampton Beach, NY
  • Average sunshine days in January: 17.1 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (12.6 days).

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Average UV index in January
Westhampton Beach, NY

Average UV index in January - Westhampton Beach, NY
  • 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
Westhampton Beach, NY

Average cloud cover in January - Westhampton Beach, NY
  • Average cloud cover in January: 46

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in January
Westhampton Beach, NY

Average visibility in January - Westhampton Beach, NY
  • 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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Westhampton Beach, New York, USA

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