January weather forecast and climate
Belfast, ME

January, the same as December, in Belfast, Maine, is another subzero cold winter month, with average temperature ranging between max 28.4°F (-2°C) and min 16.2°F (-8.8°C).

Temperature

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

Humidity

The average relative humidity in Belfast, Maine, 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 in Belfast. January is the month with the most snowfall. Snow falls for 10.1 days and accumulates 4.57" (116mm) of snow.

Ocean temperature

In January, the average ocean temperature 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

The average length of the day in Belfast is 9.3h.

Sunshine

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

UV index

Months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
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. 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.

What is the coldest month in Belfast?

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

What is the temperature in January 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, Maine, is 82%.

How many days does it rain in January in Belfast?

In Belfast, Maine, in January, it is raining for 7.3 days, with typically 1.93" (49mm) of accumulated precipitation.

How much does it snow in Belfast in January?

In January, in Belfast, Maine, it is snowing for 10.1 days. Throughout January, 4.57" (116mm) of snow is accumulated.

When does it snow the most in Belfast?

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

What is the ocean temperature 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.

What is the average length of the day in January in Belfast?

The average length of the day in January in Belfast, Maine, is 9.3h.

How many hours of sunshine does Belfast have in January?

The average sunshine in January in Belfast is 4.7h.

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

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

What is the UV index intensity in January in Belfast?

The average daily maximum UV index in January in Belfast, Maine, is 2. A UV Index reading of 2, and below, represents a low health threat from the exposure to the Sun's UV radiation.
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).

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

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

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).

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

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

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").

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).

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

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

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).
Months with the least snowfall days are June, July, August and September (0 days).

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).

Average daylight in January / Average sunshine in January - Belfast, ME
  • Average daylight in January: 9.3h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in January: 4.7h

The month with the most sunshine is August (Average sunshine: 9.9h).
The month with the least sunshine is February (Average sunshine: 4.3h).

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).

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

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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).
Months with the least cloud cover are August and September (Cloud cover 37).

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

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