Annual average weather for Maine, United States

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Annual Average Weather for Maine, United States

The annual average maximum daily temperature is 13.5°C (56.3°F) which is too cold for sunbathing. The annual average water temperature is typically 8.9°C (48.1°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit. Annually there are on average 12.2 days of rain per month and 5.5 hours of sun per day.

When is the best time to visit Maine?

The best months to visit Maine are June, July, August, September, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.

The weather is warm enough for sunbathing in the months from June to August when the maximum temperature reaches above 22°C (72°F)

The sea is best for swimming between June and November when the sea temperature is above the average 9°C (48°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Can you sunbathe in Maine year round?

No, you can't sunbathe in Maine all year round. Some months are too cold for sunbathing, however you might enjoy other beach activities such as taking a walk, going hiking along trails or just enjoying the scenery.

The weather is warm enough for sunbathing in the months from June to August when the maximum temperature reaches above 22°C (72°F)

More info about the annual temperatures and sunshine.

Can you swim in Maine year round?

No, you can't swim in Maine all year round.

The warmest sea water temperatures in Maine are found in August when they peak at 17°C (62°F) and lowest in March when they dip to 2°C (36°F).

The sea temperature is above average for swimming between June and November when the sea temperature is above 9°C (48°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

More info about the annual sea temperatures

When is the hottest month in Maine?

The hottest month in Maine is July when the average maximum temperature is very warm and perfect for sunbathing on clear days 26°C (80°F), average temperature is 21°C (70°F) and average minimum temperature is 16°C (61°F).

More info about the annual temperatures and sunshine.

When is the coldest month in Maine?

The coolest month in Maine is January when the average maximum temperature is -0°C (32°F), average temperature is -5°C (23°F) and average minimum temperature is -10°C (14°F).

More info about the annual temperatures and sunshine

When is the sunniest month in Maine?

The sunniest days in Maine are in May which has the most hours of sunshine per day. In May the sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.3 hours of sunshine per day.

More info about the annual sunshine.

When is the least sunny month in Maine?

December has the least sunshine. In December the sunshine percentage is 33% making it very cloudy and overcast with some periods of sunshine. There are 4.5 hours of sunshine per day.

More info about the annual sunshine.

When is the driest month in Maine?

The driest month in Maine is January with 8.2cm (3.2inches) of rain and September has the fewest days of rain with 9.9 days with some rain, a quite rainy time to visit the beach.

More info about the annual rainfall

When is the wettest month in Maine?

The wettest month in Maine is October with 14.2cm (5.6inches) of rain and December has the most days of rain with 14.6 days with some rain, a pretty wet time to visit the beach.

More info about the annual rainfall.

When is the sea the coldest in Maine?

The coldest sea water temperatures in Maine are found in March when they dip to 2°C (36°F) which is extremely cold and not suitable for swimming. Taking a dip at this temperature would risk hypothermia.

More info about the annual sea temperatures.

When is the sea the warmest in Maine?

The warmest sea water temperatures in Maine are found in August when they peak at 17°C (62°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.

More info about the annual sea temperatures.

When is the most humid month in Maine?

The most humid month in Maine is July with a dew point (an indicator of humidity) of 18°C (65°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

More info about the annual humidity.

When is the least humid month in Maine?

The least humid month in Maine is January with a dew point of -6°C (20°F) which is a bit dry for some.

More info about the annual humidity.

When is the windiest month in Maine?

The most windy month in Maine is April when the average maximum windspeed is 30KM/H (18MPH) and the average wind speed is 13KM/H (8MPH).

More info about the annual wind conditions.

Annual Temperature for Maine

The hottest month in Maine is July when the average maximum temperature is 26°C (80°F), average temperature is 21°C (70°F) and average minimum temperature is 16°C (61°F).

The coolest month in Maine is January when the average maximum temperature is -0°C (-0°F), average temperature is -5°C (23°F) and average minimum temperature is -10°C (14°F).

Annual Sunshine for Maine

The longest days in Maine are in June, with an average of 15.4 hours of daylight per day. December has the shortest days with an average of 9 hours of daylight per day.

The sunniest days in Maine are in May which has the most hours of sunshine per day. The sunshine percentage is 54% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.3 hours of sunshine per day.

December has the least sunshine. The sunshine percentage is 33% making it very cloudy and overcast with some periods of sunshine. There are 4.5 hours of sunshine per day.

The ultraviolet index is the highest in July when it reaches 9.1 and lowest in December when it reaches 1.2.

An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for Maine

The warmest sea water temperatures in Maine are found in August when they peak at 17°C (62°F) and lowest in March when they dip to 2°C (36°F).

The sea is best for swimming between June and November when the temperature is above 9°C (48°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Annual Rainfall for Maine

The wettest month in Maine is October with 14.2cm (5.6inches) of rain and December has the most days of rain with 14.6 days with some rain, a pretty wet time to visit the beach.

The driest month in Maine is January with 8.2cm (3.2inches) of rain and September has the fewest days of rain with 9.9 days with some rain, a quite rainy time to visit the beach.

Annual Humidity for Maine

The most humid month in Maine is July with a dew point (an indicator of humidity) of 18°C (65°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

The least humid month in Maine is January with a dew point of -6°C (20°F) which is a bit dry for some.

Annual Wind Speed for Maine

The most windy month in Maine is April when the average maximum windspeed is 30KM/H (18MPH) and the average wind speed is 13KM/H (8MPH).

The least windy month in Maine is September when the average maximum windspeed is 24KM/H (15MPH) and the average wind speed is 9KM/H (5MPH).

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