January weather forecast
Westhampton Beach, NY

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Weather in January

January, like December, in Westhampton Beach, New York, is another cold winter month, with an average temperature varying between 38.8°F (3.8°C) and 31.1°F (-0.5°C).

Temperature

January, having an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 31.1°F (-0.5°C), is the coldest month.

Humidity

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

Rainfall

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

Snowfall

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

Ocean temperature

In January, the average ocean temperature is 40.8°F (4.9°C).
Note: In swimming undertakings, this is deemed life-threatening and highly risky. The cold water induces intense discomfort and leads to swift hyperventilation. A specialized swimsuit is indispensable to decrease thermal injuries.

Daylight

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

Sunshine

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

UV index

The months with the lowest UV index are January through March and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 2 in January transforms into this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. To protect against the Sun's most potent rays, avoid direct exposure around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January is the month when Westhampton Beach, New York, sees the average lowest temperatures, with a high of 38.8°F (3.8°C) and a low of 31.1°F (-0.5°C).

How cold is January in Westhampton Beach?

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

What is the average humidity in January?

The average relative humidity in January is 73%.

What is the driest month?

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

How much does it rain in January?

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

How much does it snow in January?

In Westhampton Beach, in January, during 3.7 snowfall days, 0.94" (24mm) of snow is typically accumulated.

How cold is the water in January?

In Westhampton Beach, the average seawater temperature in January is 40.8°F (4.9°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the average length of the day in January?

In Westhampton Beach, the average day length in January is 9h and 38min.

What time are sunrise and sunset in January?

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, sunrise is at 7:01 am and sunset at 5:06 pm EST.

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

In January, the average sunshine duration is 5.1h.

When is the lowest UV index?

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 intensity in January?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

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).

Westhampton Beach, New York, USA

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