December weather forecast and climate
East Hampton, NY

The very tall Montauk Point Lighthouse stands high on a hilly spot overlooking the rocky and pebbly shores of East Hampton in Long Island, New York
The very tall Montauk Point Lighthouse stands high on a hilly spot overlooking the rocky and pebbly shores of East Hampton in Long Island, New York

Weather in December

The first month of the winter, December, is still a chilly month in East Hampton, New York, with average temperature ranging between min 38.1°F (3.4°C) and max 45.1°F (7.3°C).

Temperature

In East Hampton, the average high-temperature in December slightly decreases, from a cool 52.5°F (11.4°C) in November, to a frosty 45.1°F (7.3°C). In December, in East Hampton, the average low-temperature is 38.1°F (3.4°C).

Humidity

In December, the average relative humidity in East Hampton is 74%.

Rainfall

The month with the most rainfall is December when the rain falls for 11.6 days and typically aggregates up to 3.54" (90mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In East Hampton, during 1.8 snowfall days, 0.79" (20mm) of snow is typically accumulated. In East Hampton, during the entire year, snow falls for 12.6 days, and aggregates up to 5.94" (151mm) of snow.

Ocean temperature

In East Hampton, the average seawater temperature in December is 50°F (10°C).
Note: 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.

Daylight

With an average of 9.3h of daylight, December has the shortest days of the year in East Hampton.

Sunshine

With an average of 4.6h of sunshine, December has the least sunshine of the year.

UV index

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 minimal health hazard from unsafe exposure to the UV radiation for average individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in East Hampton?

The average high-temperature, in December, in East Hampton, New York, is 45.1°F (7.3°C), while the average low-temperature is 38.1°F (3.4°C).

What is the average humidity in December in East Hampton?

In East Hampton, New York, the average relative humidity in December is 74%.

How many days does it rain in December in East Hampton?

In December, in East Hampton, New York, the rain falls for 11.6 days. Throughout December, 3.54" (90mm) of precipitation is accumulated.

What is the rainiest month in East Hampton?

December is the month with the most rainfall. Rain falls for 11.6 days and accumulates 3.54" (90mm) of precipitation.

How many days does it snow in December in East Hampton?

In East Hampton, during December, snow falls for 1.8 days and regularly aggregates up to 0.79" (20mm) of snow.

What is the water temperature in December in East Hampton?

In East Hampton, in December, the average water temperature is 50°F (10°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 month with the shortest days in East Hampton?

The month with the shortest days in East Hampton is December, with an average of 9.3h of daylight.

How many hours of daylight does East Hampton have in December?

In December, the average length of the day in East Hampton, New York, is 9.3h.

What is the month with the least sunshine in East Hampton?

The month with the least sunshine in East Hampton is December, with an average of 4.6h of sunshine.

How long on average sun shines in December in East Hampton?

In December, the average sunshine in East Hampton is 4.6h.

What are the months with the lowest UV index in East Hampton?

Months with the lowest UV index in East Hampton are January through March and December, with an average maximum UV index of 2.

How high is the UV index in December in East Hampton?

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

Average temperature in December
East Hampton, NY

Average temperature in December - East Hampton, NY
  • Average high temperature in December: 45.1°F

The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 38.1°F

The month with the highest average low temperature is 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 December
East Hampton, NY

Average pressure in December - East Hampton, NY
  • Average pressure in December: 30.05"

The month with the highest atmospheric pressure is November (30.08").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in December
East Hampton, NY

Average wind speed in December - East Hampton, NY
  • Average wind speed in December: 16mph

The windiest month (with the highest average wind speed) is January (16.4mph).
The calmest month (with the lowest average wind speed) is July (10.8mph).

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Average humidity in December
East Hampton, NY

Average humidity in December - East Hampton, NY
  • Average humidity in December: 74%

Months with the highest relative humidity are May and June (82%).
The month with the lowest relative humidity is November (72%).

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Average rainfall in December
East Hampton, NY

Average rainfall in December - East Hampton, NY
  • Average rainfall in December: 3.54"

The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (2.09").

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Average rainfall days in December
East Hampton, NY

Average rainfall days in December - East Hampton, NY
  • Average rainfall days in December: 11.6 days

Months with the highest number of rainy days are July and August (15.5 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in December
East Hampton, NY

Average snowfall in December - East Hampton, NY
  • Average snowfall in December: 0.79"

The month with the highest snowfall is March (1.97").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
East Hampton, NY

Average snowfall days in December - East Hampton, NY
  • Average snowfall days in December: 1.8 days

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

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Average sea temperature in December
East Hampton, NY

Average sea temperature in December - East Hampton, NY
  • Average sea temperature in December: 50°F

The best month for swimming (with the highest average sea temperature) is August (72°F).
The coldest months (with the lowest average sea temperature) are February and March (41°F).

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Average daylight in December /
Average sunshine in December
East Hampton, NY

Average daylight in December / Average sunshine in December - East Hampton, NY
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.6h

The month with the most sunshine is August (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 4.6h).

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Average sunshine days in December
East Hampton, NY

Average sunshine days in December - East Hampton, NY
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is November (18.4 days).
Months with the least sunshine days are July and August (13.3 days).

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Average UV index in December
East Hampton, NY

Average UV index in December - East Hampton, NY
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March and December (UV index 2).

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Average cloud cover in December
East Hampton, NY

Average cloud cover in December - East Hampton, NY
  • Average cloud cover in December: 51

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
East Hampton, NY

Average visibility in December - East Hampton, NY
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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