January weather forecast
Belfast, ME

Weather in January

January, the same as December, in Belfast, Maine, is a freezing cold winter month, with an average temperature fluctuating between 16.2°F (-8.8°C) and 28.4°F (-2°C).

Temperature

The coldest month is January, with an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16.2°F (-8.8°C).

Humidity

In Belfast, the average relative humidity in January is 82%.

Rainfall

In Belfast, during 7.3 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, in Belfast, there are 141.1 rainfall days, and 24.29" (617mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall in Belfast, Maine. Snow falls for 10.1 days and accumulates 4.57" (116mm) of snow.

Ocean temperature

In Belfast, the average seawater temperature in January is 41.2°F (5.1°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

In January, the average length of the day in Belfast is 9h and 18min.
On the first day of the month, sunrise is at 7:12 am and sunset at 4:07 pm. On the last day of January, in Belfast, sunrise is at 6:55 am and sunset at 4:43 pm EST.

Sunshine

In January, the average sunshine in Belfast is 4.7h.

UV index

The months with the lowest UV index in Belfast are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 coldest month in Belfast?

The coldest month in Belfast is January, with an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16.2°F (-8.8°C).

What is the temperature in January in Belfast?

In Belfast, in January, the average high-temperature is 28.4°F (-2°C), and the average low-temperature is 16.2°F (-8.8°C).

What is the average humidity in January in Belfast?

In January, the average relative humidity in Belfast is 82%.

How many days does it rain in January in Belfast?

In Belfast, in January, during 7.3 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

What is the snowiest month in Belfast?

The month with the most snowfall is January, when snow falls for 10.1 days and typically aggregates up to 4.57" (116mm) of snow.

How much does it snow in Belfast in January?

In Belfast, during January, snow falls for 10.1 days and regularly aggregates up to 4.57" (116mm) of snow.

How cold is the water in January in Belfast?

In Belfast, the average seawater temperature in January is 41.2°F (5.1°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.

How many hours of daylight does Belfast have in January?

The average day length in January in Belfast, Maine, is 9h and 18min.

When are sunrise and sunset in January in Belfast?

On the first day of January in Belfast, Maine, sunrise is at 7:12 am and sunset at 4:07 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:43 pm EST.

How long on average sun shines in January in Belfast?

The average sunshine duration in January is 4.7h.

What are the months with the lowest UV index in Belfast?

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

How high is the UV index in January in Belfast?

The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Belfast, ME

Average temperature in January - Belfast, ME
  • Average high temperature in January: 28.4°F

The warmest months (with the highest average high temperature) are July and August (73.9°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in January: 16.2°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in January
Belfast, ME

Average pressure in January - Belfast, ME
  • Average pressure in January: 29.96"Hg

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in January
Belfast, ME

Average wind speed in January - Belfast, ME
  • Average wind speed in January: 9.9mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in January
Belfast, ME

Average humidity in January - Belfast, ME
  • Average humidity in January: 82%

The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is November (77%).

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Average rainfall in January
Belfast, ME

Average rainfall in January - Belfast, ME
  • Average rainfall in January: 1.93"

The wettest month (with the highest rainfall) is December (2.72").
The driest months (with the least rainfall) are July and September (1.46").

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Average rainfall days in January
Belfast, ME

Average rainfall days in January - Belfast, ME
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.1 days).

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Average snowfall in January
Belfast, ME

Average snowfall in January - Belfast, ME
  • Average snowfall in January: 4.57"

The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Belfast, ME

Average snowfall days in January - Belfast, ME
  • Average snowfall days in January: 10.1 days

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in January
Belfast, ME

Average sea temperature in January - Belfast, ME
  • Average sea temperature in January: 41.2°F

The best month for swimming (with the highest average sea temperature) is August (60.4°F).
The coldest month (with the lowest average sea temperature) is March (37.8°F).

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Average daylight in January /
Average sunshine in January
Belfast, ME

Average daylight in January / Average sunshine in January - Belfast, ME
  • Average daylight in January: 9h and 18min

The month with the longest days is June (Average daylight: 15h and 29min).
The month with the shortest days is December (Average daylight: 8h and 55min).

  • Average sunshine in January: 4h and 42min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days in January
Belfast, ME

Average sunshine days in January - Belfast, ME
  • Average sunshine days in January: 16.9 days

The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.7 days).

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Average UV index in January
Belfast, ME

Average UV index in January - Belfast, ME
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 5).
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 January
Belfast, ME

Average cloud cover in January - Belfast, ME
  • Average cloud cover in January: 51

The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 37).

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Average visibility in January
Belfast, ME

Average visibility in January - Belfast, ME
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).

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