Bar Harbor
Maine, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Bar Harbor, ME

A very scenic aerial view of the popular tourist spot of Bar Harbor in Maine, within the Mount Desert Island, a scenic hilly landscape outback
A very scenic aerial view of the popular tourist spot of Bar Harbor in Maine, within the Mount Desert Island, a scenic hilly landscape outback
January, the same as December, in Bar Harbor, Maine, is another subzero cold winter month, with average temperature ranging between max 28.4°F (-2°C) and min 8.6°F (-13°C). With an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 8.6°F (-13°C), January is the coldest month. Weather in January »
The last month of the winter, February, is another freezing cold month in Bar Harbor, Maine, with average temperature fluctuating between 10.4°F (-12°C) and 30.2°F (-1°C). In Bar Harbor, Maine, the average high-temperature is relatively the same as in January - a still subzero cold 30.2°F (-1°C). Weather in February »

March, the first month of the spring, in Bar Harbor, is a wintry month, with average temperature varying between 23°F (-5°C) and 41°F (5°C). In Bar Harbor, Maine, the average high-temperature in March rises, from a subzero cold 30.2°F (-1°C) in February, to a wintry 41°F (5°C). Weather in March »

April is a fresh spring month in Bar Harbor, Maine, with average temperature fluctuating between 33.8°F (1°C) and 51.8°F (11°C). In April, the average high-temperature increases, from a cold 41°F (5°C) in March, to a fresh 51.8°F (11°C). Weather in April »

The last month of the spring, May, is a comfortable month in Bar Harbor, Maine, with average temperature varying between 64.4°F (18°C) and 42.8°F (6°C). In Bar Harbor, Maine, the average high-temperature increases, from a cool 51.8°F (11°C) in April, to an enjoyable 64.4°F (18°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Bar Harbor, Maine, with average temperature varying between 73.4°F (23°C) and 51.8°F (11°C). In June, the average high-temperature increases, from an enjoyable 64.4°F (18°C) in May, to a warm 73.4°F (23°C). Weather in June »

July, the same as June, is another warm summer month in Bar Harbor, Maine, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 78.8°F (26°C). July is the warmest month, with an average high-temperature of 78.8°F (26°C) and an average low-temperature of 57.2°F (14°C). Weather in July »

The last month of the summer, August, is another warm month in Bar Harbor, Maine, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 77°F (25°C). In August, the average high-temperature is practically the same as in July - a still warm 77°F (25°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in Bar Harbor, Maine, with temperature in the range of an average high of 68°F (20°C) and an average low of 48.2°F (9°C). In Bar Harbor, the average high-temperature in September decreases, from a warm 77°F (25°C) in August, to an agreeable 68°F (20°C). Weather in September »

October, like September, is another mild autumn month in Bar Harbor, Maine, with average temperature varying between 59°F (15°C) and 39.2°F (4°C). In Bar Harbor, the average high-temperature in October decreases, from a pleasant 68°F (20°C) in September, to a moderate 59°F (15°C). Weather in October »

November, the last month of the autumn, in Bar Harbor, is another chilly month, with average temperature ranging between min 30.2°F (-1°C) and max 46.4°F (8°C). In Bar Harbor, the average high-temperature in November decreases, from a moderate 59°F (15°C) in October, to a frosty 46.4°F (8°C). Weather in November »

The first month of the winter, December, is also a wintry month in Bar Harbor, Maine, with average temperature fluctuating between 33.8°F (1°C) and 15.8°F (-9°C). In Bar Harbor, the average high-temperature drops, from a chilly 46.4°F (8°C) in November, to a wintry 33.8°F (1°C). Weather in December »

What is the coldest month in Bar Harbor?

January is the coldest month, with an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 8.6°F (-13°C).

How much does it rain in Bar Harbor?

In Bar Harbor, during the entire year, the rain falls for 140 days and collects up to 51.4" (1306mm) of precipitation.

When is the lowest UV index in Bar Harbor?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Bar Harbor, Maine.

What month is the ocean coldest in Bar Harbor?

With an average ocean temperature of 38.7°F (3.7°C), March is the month with the coldest seawater in Bar Harbor. For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

When are the longest days in Bar Harbor?

The month with the longest days in Bar Harbor is June, with an average of 15.5h of daylight.

What are the months with the most sunshine in Bar Harbor?

June and July, with an average of 8h of sunshine, are months with the most sunshine.

What are the months with the highest UV index in Bar Harbor?

June and July, with an average maximum UV index of 8, are months with the highest UV index.

What is the warmest month in Bar Harbor?

The warmest month is July, with an average high-temperature of 78.8°F (26°C) and an average low-temperature of 57.2°F (14°C).

What is the driest month in Bar Harbor?

August is the month with the least rainfall. Rain falls for 11 days and accumulates 2.9" (74mm) of precipitation.

What is the month with the warmest ocean in Bar Harbor?

With an average ocean temperature of 56.8°F (13.8°C), August is the month with the warmest seawater in Bar Harbor, Maine. Swimming in 56.8°F (13.8°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 rainiest month in Bar Harbor?

The month with the most rainfall in Bar Harbor, Maine, is November when the rain falls for 13 days and typically aggregates up to 6" (153mm) of precipitation.

What is the month with the shortest days in Bar Harbor?

The month with the shortest days in Bar Harbor is December, with an average of 8.9h of daylight.

What is the month with the least sunshine in Bar Harbor?

December has the least sunshine of the year in Bar Harbor, Maine, with an average of 3h of sunshine.
Average rainfall - Bar Harbor, ME
Average rainfall days - Bar Harbor, ME

The month with the highest number of rainy days is December (14 days).
Months with the lowest number of rainy days are February and September (10 days).

Average sea temperature - Bar Harbor, ME

The best month for swimming (with the highest average sea temperature) is August (56.8°F).
The coldest month (with the lowest average sea temperature) is March (38.6°F).

Average daylight / Average sunshine - Bar Harbor, ME