Climate and monthly weather forecast
Boothbay Harbor, ME

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Weather in January

January, the same as December, in Boothbay Harbor, Maine, is another subzero cold winter month, with an average temperature ranging between max 29.7°F (-1.3°C) and min 18°F (-7.8°C). January, characterized by an average high temperature of 29.7°F (-1.3°C) and a low temperature of 18°F (-7.8°C), is generally the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Boothbay Harbor, Maine, with temperature in the range of an average high of 31.5°F (-0.3°C) and an average low of 19°F (-7.2°C). The arrival of February coincides with an average high-temperature of a still freezing cold 31.5°F (-0.3°C), indicating a minimal shift from January's 29.7°F (-1.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a cold month in Boothbay Harbor, Maine, with an average temperature ranging between max 37.9°F (3.3°C) and min 26.1°F (-3.3°C). The shift into March is characterized by a subtle rise in the average high-temperature, transitioning from February's freezing cold 31.5°F (-0.3°C) to an icy 37.9°F (3.3°C). Weather in March »

Weather in April

April is a frosty spring month in Boothbay Harbor, Maine, with an average temperature fluctuating between 36.1°F (2.3°C) and 49.1°F (9.5°C). The transition to April introduces an increase in the average high-temperature, shifting from a wintry 37.9°F (3.3°C) in March to a chilly 49.1°F (9.5°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderate month in Boothbay Harbor, Maine, with an average temperature varying between 45.5°F (7.5°C) and 59.4°F (15.2°C). An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a chilly 49.1°F (9.5°C) to a refreshing 59.4°F (15.2°C). Weather in May »

Weather in June

The first month of the summer, June, is an enjoyable month in Boothbay Harbor, Maine, with an average temperature ranging between min 52.7°F (11.5°C) and max 66.7°F (19.3°C). With the start of June, the average high-temperature marginally shifts from May's moderate 59.4°F (15.2°C) to a comfortable 66.7°F (19.3°C). Weather in June »

Weather in July

July is a warm summer month in Boothbay Harbor, Maine, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 59.5°F (15.3°C). The temperature hits its peak in July and August, recording an average high-temperature of 74.1°F (23.4°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Boothbay Harbor, Maine, with an average temperature varying between 74.1°F (23.4°C) and 59.2°F (15.1°C). July and August mark Boothbay Harbor's peak of temperatures, averaging a high-temperature of 74.1°F (23.4°C). Weather in August »

Weather in September

September, the first month of the autumn in Boothbay Harbor, is still a refreshing month, with an average temperature varying between 67.5°F (19.7°C) and 53.6°F (12°C). Boothbay Harbor in September experiences a gentle temperature dip, with average high-temperatures reducing from a warm 74.1°F (23.4°C) in August to an enjoyable 67.5°F (19.7°C). Weather in September »

Weather in October

October, the same as September, in Boothbay Harbor, Maine, is another mild autumn month, with an average temperature varying between 45°F (7.2°C) and 56.3°F (13.5°C). The shift to October brings a decrease in the average high-temperature, falling from a refreshing 67.5°F (19.7°C) in September to a moderate 56.3°F (13.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Boothbay Harbor, is another chilly month, with an average temperature ranging between max 45.5°F (7.5°C) and min 34.5°F (1.4°C). November brings a drop in Boothbay Harbor's average high-temperature, falling from a moderate 56.3°F (13.5°C) in October to a chilly 45.5°F (7.5°C). Weather in November »

Weather in December

December, the first month of the winter in Boothbay Harbor, is still a cold month, with an average temperature ranging between min 25.3°F (-3.7°C) and max 35.2°F (1.8°C). The average high-temperature drops in December, from November's frosty 45.5°F (7.5°C) to a cold 35.2°F (1.8°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Boothbay Harbor?

Boothbay Harbor's coldest weather arrives in January, when temperatures average a high of 29.7°F (-1.3°C) and a low of 18°F (-7.8°C).

How many days does it rain in Boothbay Harbor?

Throughout the year, in Boothbay Harbor, there are 142.1 rainfall days, and 30.51" (775mm) of precipitation is accumulated.

When does it snow in Boothbay Harbor?

Months with snowfall in Boothbay Harbor are January through May, November and December.

When does it snow the most in Boothbay Harbor?

January is the month with the most snowfall. Snow falls for 9.2 days and accumulates 5.28" (134mm) of snow.

How many days does it snow in Boothbay Harbor?

In Boothbay Harbor, Maine, during the entire year, snow falls for 40 days and aggregates up to 20.08" (510mm) of snow.

What is the month with the lowest UV index in Boothbay Harbor?

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

What are the months with the least sunshine in Boothbay Harbor?

February and December, with an average of 4.6h of sunshine, are months with the least sunshine.

What is the month with the coldest ocean in Boothbay Harbor?

The month with the coldest seawater in Boothbay Harbor is March, with an average ocean temperature of 37.9°F (3.3°C).

When is Daylight Saving Time (DST) in Boothbay Harbor?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Boothbay Harbor, Maine, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What are the most humid months in Boothbay Harbor?

The months with the highest humidity are June and July, with an average relative humidity of 82%.

When it does not snow in Boothbay Harbor?

In Boothbay Harbor, snow does not fall in June through October.

When are the longest days in Boothbay Harbor?

With an average of 15h and 24min of daylight, June has the longest days of the year in Boothbay Harbor.

What are the warmest months in Boothbay Harbor?

The warmest period in Boothbay Harbor, Maine, is usually observed in July and August, with the average high-temperature peaking at 74.1°F (23.4°C).

What is the month with the highest UV index in Boothbay Harbor?

July is the month with the highest UV index in Boothbay Harbor, Maine, with an average maximum UV index of 6.

What month is the ocean warmest in Boothbay Harbor?

With an average ocean temperature of 62.2°F (16.8°C), August is the month with the warmest seawater in Boothbay Harbor, Maine.

What month has the most sunshine in Boothbay Harbor?

August has the most sunshine of the year, with an average of 10.3h of sunshine.

What is the driest month in Boothbay Harbor?

The month with the least rainfall in Boothbay Harbor is September, when the rain falls for 10.8 days and typically collects 1.5" (38mm) of precipitation.

What is the least humid month in Boothbay Harbor?

With an average relative humidity of 76%, November is the least humid month.

What is the wettest month in Boothbay Harbor?

December is the month with the most rainfall. Rain falls for 10.8 days and accumulates 3.5" (89mm) of precipitation.

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

With an average of 9h and 0min of daylight, December has the shortest days of the year in Boothbay Harbor.

Average temperature
Boothbay Harbor, ME

Average temperature - Boothbay Harbor, ME

The warmest months (with the highest average high temperature) are July and August (74.1°F).
The month with the lowest average high temperature is January (29.7°F).

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure
Boothbay Harbor, ME

Average pressure - Boothbay Harbor, ME

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

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Average wind speed
Boothbay Harbor, ME

Average wind speed - Boothbay Harbor, ME

The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity
Boothbay Harbor, ME

Average humidity - Boothbay Harbor, ME

The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (76%).

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Average rainfall
Boothbay Harbor, ME

Average rainfall - Boothbay Harbor, ME

The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days
Boothbay Harbor, ME

Average rainfall days - Boothbay Harbor, ME

The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is January (6.6 days).

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Average snowfall
Boothbay Harbor, ME

Average snowfall - Boothbay Harbor, ME

The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Boothbay Harbor, ME

Average snowfall days - Boothbay Harbor, ME

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature
Boothbay Harbor, ME

Average sea temperature - Boothbay Harbor, ME

The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is March (37.9°F).

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Average daylight / Average sunshine
Boothbay Harbor, ME

Average daylight / Average sunshine - Boothbay Harbor, ME

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

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Average sunshine days
Boothbay Harbor, ME

Average sunshine days - Boothbay Harbor, ME

The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is April (11.7 days).

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Average UV index
Boothbay Harbor, ME

Average UV index - Boothbay Harbor, ME

The month with the highest UV index is July (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 visibility
Boothbay Harbor, ME

Average visibility - Boothbay Harbor, ME

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

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Boothbay Harbor, Maine, USA

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