December weather forecast
Weweantic, MA

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Weather in December

The first month of the winter, December, is still a cold month in Weweantic, Massachusetts, with an average temperature ranging between max 42.3°F (5.7°C) and min 33.6°F (0.9°C).

Temperature

December heralds a minor drop in average high-temperature, sliding from November's fresh 50.9°F (10.5°C) to a wintry 42.3°F (5.7°C). During December, Weweantic's nights hold steady with an average temperature of 33.6°F (0.9°C), barely dropping from the daytime highs.

Humidity

The average relative humidity in December is 76%.

Rainfall

In Weweantic, during December, the rain falls for 10.3 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Weweantic, during the entire year, the rain falls for 136.3 days and collects up to 15.63" (397mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Weweantic. In Weweantic, in December, snow falls for 3.2 days, with typically accumulated 0.75" (19mm) of snow. In Weweantic, during the entire year, snow falls for 21.6 days and aggregates up to 4.29" (109mm) of snow.

Ocean temperature

In Weweantic, in December, the average water temperature is 46.9°F (8.3°C).
Note: If planning to swim in 46.9°F (8.3°C) under 50°F (10°C), wear a protective suit. Neglecting this advice might cause immediate cold shock and troubled breathing. A splash around 55.4°F (13°C) is not much warmer.

Daylight

The month with the shortest days in Weweantic is December, with an average of 9h and 12min of daylight.
On the first day of December in Weweantic, Massachusetts, sunrise is at 6:51 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 4:22 pm EST.

Sunshine

The average sunshine in December in Weweantic is 4.9h.

UV index

The months with the lowest UV index in Weweantic are January through March, November 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 UV radiation for the ordinary person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

Is it cold in Weweantic during December?

The average high-temperature and low-temperature in Weweantic during December are 42.3°F (5.7°C) and 33.6°F (0.9°C) respectively.

What is the average humidity in December in Weweantic?

In December, the average relative humidity in Weweantic is 76%.

How much does it rain in Weweantic in December?

In Weweantic, during December, the rain falls for 10.3 days and regularly aggregates up to 1.5" (38mm) of precipitation.

How many days does it snow in December in Weweantic?

In Weweantic, in December, snow falls for 3.2 days, with typically accumulated 0.75" (19mm) of snow.

What is the water temperature in December in Weweantic?

In December, the average ocean temperature is 46.9°F (8.3°C). Swimming in 46.9°F (8.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the month with the shortest days in Weweantic?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

How many hours of daylight does Weweantic have in December?

In Weweantic, the average day length in December is 9h and 13min.

When is the sunrise / sunset in December in Weweantic?

On the first day of December in Weweantic, sunrise is at 6:51 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 4:22 pm EST.

How long on average sun shines in December in Weweantic?

The average sunshine duration in December is 4.9h.

When is the lowest UV index in Weweantic?

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

How high is the UV index in December in Weweantic?

In Weweantic, Massachusetts, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk 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 December
Weweantic, MA

Average temperature in December - Weweantic, MA
  • Average high temperature in December: 42.3°F

The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in December: 33.6°F

The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in December
Weweantic, MA

Average pressure in December - Weweantic, MA
  • Average pressure in December: 30.03"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Weweantic, MA

Average wind speed in December - Weweantic, MA
  • Average wind speed in December: 12.3mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity in December
Weweantic, MA

Average humidity in December - Weweantic, MA
  • Average humidity in December: 76%

The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are March and November (74%).

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Average rainfall in December
Weweantic, MA

Average rainfall in December - Weweantic, MA
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is October (1.89").
The driest month (with the least rainfall) is February (0.98").

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Average rainfall days in December
Weweantic, MA

Average rainfall days in December - Weweantic, MA
  • Average rainfall days in December: 10.3 days

The months with the highest number of rainy days are May and July (14.1 days).
The month with the least rainy days is February (7.7 days).

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Average snowfall in December
Weweantic, MA

Average snowfall in December - Weweantic, MA
  • Average snowfall in December: 0.75"

The month with the highest snowfall is February (1.1").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Weweantic, MA

Average snowfall days in December - Weweantic, MA
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in December
Weweantic, MA

Average sea temperature in December - Weweantic, MA
  • Average sea temperature in December: 46.9°F

The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).

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Average daylight in December /
Average sunshine in December
Weweantic, MA

Average daylight in December / Average sunshine in December - Weweantic, MA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (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 December
Weweantic, MA

Average sunshine days in December - Weweantic, MA
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is December (17.7 days).
The month with the least sunshine days is April (14.3 days).

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Average UV index in December
Weweantic, MA

Average UV index in December - Weweantic, MA
  • 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, November and December (UV index 2).

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Average cloud cover in December
Weweantic, MA

Average cloud cover in December - Weweantic, MA
  • Average cloud cover in December: 48

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in December
Weweantic, MA

Average visibility in December - Weweantic, MA
  • 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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Weweantic, Massachusetts, USA

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