December weather forecast
Montauk, NY

The shores of The Atlantic Ocean with a far view of the Montauk Point Lighthouse, in Montauk, New York
The shores of The Atlantic Ocean with a far view of the Montauk Point Lighthouse, in Montauk, New York

Weather in December

The first month of the winter, December, is still a chilly month in Montauk, New York, with an average temperature ranging between min 37.9°F (3.3°C) and max 45°F (7.2°C).

Temperature

In Montauk, the average high-temperature in December marginally drops from a fresh 52.5°F (11.4°C) in November to a frosty 45°F (7.2°C). The average low-temperature, in Montauk, is 37.9°F (3.3°C).

Humidity

In December, the average relative humidity is 74%.

Rainfall

December is the month with the most rainfall in Montauk. Rain falls for 13.4 days and accumulates 4.02" (102mm) of precipitation.

Snowfall

January through April and December are months with snowfall in Montauk, New York. December is the first month it typically snows in Montauk. Throughout December, in the average 2.6 snowfall days, it receives 0.75" (19mm) of snow. Throughout the year, in Montauk, there are 15.2 snowfall days, and 6.14" (156mm) of snow is accumulated.

Ocean temperature

In December, the average ocean temperature is 48.6°F (9.2°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 9h and 17min of daylight, December has the shortest days of the year in Montauk.
On the first day of December, sunrise is at 6:53 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:29 pm EST.

Sunshine

With an average of 4.7h of sunshine, December has the least sunshine of the year in Montauk.

UV index

The months with the lowest UV index in Montauk, New York, are January through March and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 Montauk?

The average high-temperature, in December, in Montauk, New York, is 45°F (7.2°C), while the average low-temperature is 37.9°F (3.3°C).

What is the average humidity in December in Montauk?

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

What is the rainiest month in Montauk?

December is the month with the most rainfall in Montauk, New York. Rain falls for 13.4 days and accumulates 4.02" (102mm) of precipitation.

How much does it rain in Montauk in December?

In Montauk, New York, in December, it is raining for 13.4 days, with typically 4.02" (102mm) of accumulated precipitation.

When does it start to snow in Montauk?

December is the first month it typically snows in Montauk, New York. Throughout December, in the average 2.6 snowfall days, it receives 0.75" (19mm) of snow.

How cold is the water in December in Montauk?

In December, the average ocean temperature in Montauk is 48.6°F (9.2°C). Swimming in 48.6°F (9.2°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the month with the shortest days in Montauk?

The month with the shortest days in Montauk, New York, is December, with an average of 9h and 17min of daylight.

How many hours of daylight does Montauk have in December?

The average day length in December in Montauk, New York, is 9h and 17min.

When is the sunrise / sunset in December in Montauk?

In December, on the first day of the month, sunrise is at 6:53 am and sunset at 4:20 pm. On the last day of the month, in Montauk, New York, sunrise is at 7:12 am and sunset at 4:29 pm EST.

What is the month with the least sunshine in Montauk?

The month with the least sunshine is December, with an average of 4.7h of sunshine.

How long on average sun shines in December in Montauk?

In Montauk, the average sunshine duration in December is 4.7h.

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

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

What is the UV index intensity in December in Montauk?

In Montauk, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat from 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 December
Montauk, NY

Average temperature in December - Montauk, NY
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 37.9°F

The month with the highest average low temperature is August (70.9°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

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Average pressure in December
Montauk, NY

Average pressure in December - Montauk, NY
  • Average pressure in December: 30.05"Hg

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

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Average wind speed in December
Montauk, NY

Average wind speed in December - Montauk, NY
  • Average wind speed in December: 16.3mph

The windiest month (with the highest average wind speed) is January (16.7mph).
The calmest month (with the lowest average wind speed) is July (11.1mph).

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Average humidity in December
Montauk, NY

Average humidity in December - Montauk, NY
  • Average humidity in December: 74%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in December
Montauk, NY

Average rainfall in December - Montauk, NY
  • Average rainfall in December: 4.02"

The wettest month (with the highest rainfall) is December (4.02").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in December
Montauk, NY

Average rainfall days in December - Montauk, NY
  • Average rainfall days in December: 13.4 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (9.9 days).

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Average snowfall in December
Montauk, NY

Average snowfall in December - Montauk, NY
  • Average snowfall in December: 0.75"

The month with the highest snowfall is March (2.24").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in December
Montauk, NY

Average snowfall days in December - Montauk, NY
  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is January (5.1 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 December
Montauk, NY

Average sea temperature in December - Montauk, NY
  • Average sea temperature in December: 48.6°F

The best month for swimming (with the highest average sea temperature) is August (70.3°F).
The coldest month (with the lowest average sea temperature) is February (37.9°F).

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Average daylight in December /
Average sunshine in December
Montauk, NY

Average daylight in December / Average sunshine in December - Montauk, NY
  • Average daylight in December: 9h and 17min

The month with the longest days is June (Average daylight: 15h and 5min).
The month with the shortest days is December (Average daylight: 9h and 17min).

  • Average sunshine in December: 4h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

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Average sunshine days in December
Montauk, NY

Average sunshine days in December - Montauk, NY
  • Average sunshine days in December: 13.7 days

The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is February (12.4 days).

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Average UV index in December
Montauk, NY

Average UV index in December - Montauk, NY
  • Average UV index in December: 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 December
Montauk, NY

Average cloud cover in December - Montauk, NY
  • Average cloud cover in December: 50

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
Montauk, NY

Average visibility in December - Montauk, NY
  • Average visibility in December: 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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