January weather forecast
Oak Bluffs, MA

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Weather in January

January, like December, in Oak Bluffs, Massachusetts, is an icy winter month, with temperature in the range of an average high of 38.7°F (3.7°C) and an average low of 30.2°F (-1°C).

Temperature

Oak Bluffs experiences its lowest average temperatures in January, reaching a peak of 38.7°F (3.7°C) and a minimum of 30.2°F (-1°C).

Humidity

In January, the average relative humidity is 75%.

Rainfall

In Oak Bluffs, during January, the rain falls for 7.1 days and regularly aggregates up to 0.47" (12mm) of precipitation. In Oak Bluffs, during the entire year, the rain falls for 89.3 days and collects up to 6.14" (156mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. The months with the most snowfall are January and February, with an average 0.24" (6mm) of accumulated snow.

Ocean temperature

In Oak Bluffs, the average seawater temperature in January is 41.4°F (5.2°C).
Note: In 41.4°F (5.2°C), cold shock and rapid breathing can occur when swimming at temperatures below 50°F (10°C).

Daylight

In Oak Bluffs, the average length of the day in January is 9h and 35min.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:22 pm. On the last day of January, sunrise is at 6:54 am and sunset at 4:56 pm EST.

Sunshine

In Oak Bluffs, the average sunshine in January is 4.9h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 2 during January leads to these advisories:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

Oak Bluffs's coldest temperatures are experienced in January, with average high temperatures of 38.7°F (3.7°C) and lows of 30.2°F (-1°C).

Is January cold?

The average high-temperature and low-temperature during January are 38.7°F (3.7°C) and 30.2°F (-1°C) respectively.

What is the average humidity in January?

In January, the average relative humidity in Oak Bluffs, Massachusetts, is 75%.

How much does it rain in January?

In Oak Bluffs, in January, during 7.1 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

When does it snow the most in Oak Bluffs?

The months with the most snowfall are January and February, with an average 0.24" (6mm) of accumulated snow.

How much does it snow in January?

In Oak Bluffs, during January, snow falls for 5.6 days and regularly aggregates up to 0.24" (6mm) of snow.

What is the water temperature in January?

In Oak Bluffs, the average seawater temperature in January is 41.4°F (5.2°C). Swimming in 41.4°F (5.2°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 average length of the day in January?

In January, the average day length is 9h and 35min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:08 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:56 pm EST.

How long on average sun shines in January?

In January, the average sunshine duration is 4.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in January?

In Oak Bluffs, Massachusetts, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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 January
Oak Bluffs, MA

Average temperature in January - Oak Bluffs, MA
  • Average high temperature in January: 38.7°F

The warmest month (with the highest average high temperature) is August (73.8°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in January: 30.2°F

The month with the highest average low temperature is August (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in January
Oak Bluffs, MA

Average pressure in January - Oak Bluffs, MA
  • Average pressure in January: 30"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).

Average wind speed in January
Oak Bluffs, MA

Average wind speed in January - Oak Bluffs, MA
  • Average wind speed in January: 16mph

The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.7mph).

Average humidity in January
Oak Bluffs, MA

Average humidity in January - Oak Bluffs, MA
  • Average humidity in January: 75%

The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is November (74%).

Average rainfall in January
Oak Bluffs, MA

Average rainfall in January - Oak Bluffs, MA
  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is October (0.83").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in January
Oak Bluffs, MA

Average rainfall days in January - Oak Bluffs, MA
  • Average rainfall days in January: 7.1 days

The month with the highest number of rainy days is July (9.1 days).
The months with the least rainy days are September and November (5.9 days).

Average snowfall in January
Oak Bluffs, MA

Average snowfall in January - Oak Bluffs, MA
  • Average snowfall in January: 0.24"

The months with the highest snowfall are January and February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in January
Oak Bluffs, MA

Average snowfall days in January - Oak Bluffs, MA
  • Average snowfall days in January: 5.6 days

The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in January
Oak Bluffs, MA

Average sea temperature in January - Oak Bluffs, MA
  • Average sea temperature in January: 41.2°F

The best month for swimming (with the highest average sea temperature) is August (68.5°F).
The coldest month (with the lowest average sea temperature) is February (37.9°F).

Average daylight in January /
Average sunshine in January
Oak Bluffs, MA

Average daylight in January / Average sunshine in January - Oak Bluffs, MA
  • 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 12min).

  • Average sunshine in January: 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 36min).

Average sunshine days in January
Oak Bluffs, MA

Average sunshine days in January - Oak Bluffs, MA
  • Average sunshine days in January: 20.9 days

The month with the most sunshine days is September (21.4 days).
The month with the least sunshine days is February (18.5 days).

Average UV index in January
Oak Bluffs, MA

Average UV index in January - Oak Bluffs, MA
  • Average UV index in January: 2

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

Average cloud cover in January
Oak Bluffs, MA

Average cloud cover in January - Oak Bluffs, MA
  • Average cloud cover in January: 48

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in January
Oak Bluffs, MA

Average visibility in January - Oak Bluffs, MA
  • 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).

Oak Bluffs, Massachusetts, USA

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