Climate and monthly weather forecast
Seal Harbor, ME

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Weather in January

January, like December, is a freezing cold winter month in Seal Harbor, Maine, with an average temperature ranging between max 29.7°F (-1.3°C) and min 18.5°F (-7.5°C). January, on average, is the coldest month, registering a high temperature of 29.7°F (-1.3°C) and a low of 18.5°F (-7.5°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Seal Harbor, Maine, with an average temperature ranging between max 30.7°F (-0.7°C) and min 18.9°F (-7.3°C). February brings an average high-temperature of a still subzero cold 30.7°F (-0.7°C), nearly identical to the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Seal Harbor, Maine, with temperature in the range of an average low of 25.9°F (-3.4°C) and an average high of 37.2°F (2.9°C). In Seal Harbor, stepping into March brings a gentle temperature nudge, moving slightly up from February's freezing cold 30.7°F (-0.7°C) to a wintry 37.2°F (2.9°C). Weather in March »

Weather in April

April is a frosty spring month in Seal Harbor, Maine, with an average temperature varying between 48.6°F (9.2°C) and 35.6°F (2°C). The shift into April brings an increase in the average high-temperature, moving from an icy 37.2°F (2.9°C) in March to a frosty 48.6°F (9.2°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderate month in Seal Harbor, Maine, with an average temperature fluctuating between 44.2°F (6.8°C) and 58.6°F (14.8°C). The start of May is characterized by an increase in the average high-temperature, transitioning from a chilly 48.6°F (9.2°C) in April to a refreshing 58.6°F (14.8°C). Weather in May »

Weather in June

June, the first month of the summer in Seal Harbor, is a refreshing month, with an average temperature ranging between min 51.4°F (10.8°C) and max 66°F (18.9°C). Seal Harbor's weather in June presents a minor rise in the average high-temperature, moving from a mild 58.6°F (14.8°C) in May to a comfortable 66°F (18.9°C). Weather in June »

Weather in July

July in Seal Harbor, Maine, is a pleasant summer month, with an average temperature fluctuating between 73.2°F (22.9°C) and 58.1°F (14.5°C). July showcases a minor temperature ascent, adjusting from June's comfortable 66°F (18.9°C) to an agreeable 73.2°F (22.9°C). Weather in July »

Weather in August

August, the last month of the summer in Seal Harbor, is a warm month, with an average temperature varying between 73.4°F (23°C) and 57.7°F (14.3°C). In Seal Harbor, the peak average temperatures are observed in August, with a high of 73.4°F (23°C) and a low of 57.7°F (14.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a refreshing month in Seal Harbor, Maine, with temperature in the range of an average high of 67.1°F (19.5°C) and an average low of 52.7°F (11.5°C). As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a moderately hot 73.4°F (23°C) to a refreshing 67.1°F (19.5°C). Weather in September »

Weather in October

October, the same as September, in Seal Harbor, Maine, is another mild autumn month, with an average temperature ranging between max 55.9°F (13.3°C) and min 45°F (7.2°C). The average high-temperature drops in October, from September's enjoyable 67.1°F (19.5°C) to a still refreshing 55.9°F (13.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Seal Harbor, is also a frosty month, with an average temperature ranging between min 34.7°F (1.5°C) and max 44.8°F (7.1°C). Onset of November comes with a temperature decline, the average high falling from a moderate 55.9°F (13.3°C) in October to a frosty 44.8°F (7.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Seal Harbor, Maine, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 35.1°F (1.7°C). As Seal Harbor enters December, the average high-temperature decreases from the a chilly 44.8°F (7.1°C) of November to a cold 35.1°F (1.7°C). Weather in December »
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

The coldest period tends to be January, when average temperatures fluctuate between a high of 29.7°F (-1.3°C) and a low of 18.5°F (-7.5°C).

How much does it rain?

Throughout the year, there are 142.1 rainfall days, and 32.28" (820mm) of precipitation is accumulated.

When does it snow?

Months with snowfall in Seal Harbor are January through May, October through December.

How much does it snow?

In Seal Harbor, Maine, during the entire year, snow falls for 48.1 days and aggregates up to 23.82" (605mm) of snow.

What are the months 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 most humid month?

With an average relative humidity of 83%, February is the most humid month.

When does it snow the most in Seal Harbor?

The month with the most snowfall is February, when snow falls for 11.4 days and typically aggregates up to 5.75" (146mm) of snow.

What is the month with the least sunshine?

February has the least sunshine of the year, with an average of 4.1h of sunshine.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.

When it does not snow?

In Seal Harbor, snow does not fall in June through September.

When are the longest days?

With an average of 15h and 30min of daylight, June has the longest days of the year.

When is the highest UV index?

June through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the driest month?

The month with the least rainfall is July, when the rain falls for 13 days and typically collects 1.57" (40mm) of precipitation.

What are the warmest months?

With average high temperatures of 73.4°F (23°C) and lows of 57.7°F (14.3°C), August is the warmest month.

What month has the most sunshine?

With an average of 10.1h of sunshine, August has the most sunshine of the year.

What is the least humid month?

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

What is the rainiest month?

December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 3.94" (100mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

Average temperature
Seal Harbor, ME

Average temperature - Seal Harbor, ME

The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure
Seal Harbor, ME

Average pressure - Seal Harbor, ME

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

Average wind speed
Seal Harbor, ME

Average wind speed - Seal Harbor, ME

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity
Seal Harbor, ME

Average humidity - Seal Harbor, ME

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is November (76%).

Average rainfall
Seal Harbor, ME

Average rainfall - Seal Harbor, ME

The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (1.57").

Average rainfall days
Seal Harbor, ME

Average rainfall days - Seal Harbor, ME

The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is February (7.5 days).

Average snowfall
Seal Harbor, ME

Average snowfall - Seal Harbor, ME

The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Seal Harbor, ME

Average snowfall days - Seal Harbor, ME

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Seal Harbor, ME

Average daylight / Average sunshine - Seal Harbor, ME

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

Average sunshine days
Seal Harbor, ME

Average sunshine days - Seal Harbor, ME

The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is April (11.2 days).

Average UV index
Seal Harbor, ME

Average UV index - Seal Harbor, ME

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).

Average visibility
Seal Harbor, ME

Average visibility - Seal Harbor, ME

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

Seal Harbor, Maine, USA

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