Annual average weather for Marthas Vineyard, United States

Search

Best
Best
Best
Best
Tan
Tan
Tan
Tan
Sea
 
Sea
 
Sea
 
Sea
 
Sea
12°
 
Sea
15°
 
Sea
18°
 
Sea
19°
Swim
Sea
16°
 
Sea
13°
 
Sea
11°
 
Sea
 

Annual Average Weather for Marthas Vineyard, United States

The annual average maximum daily temperature is 15.2°C (59.3°F) which is a little too chilly for sunbathing. The annual average water temperature is typically 10.8°C (51.5°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit. Annually there are on average 13.3 days of rain per month and 6.0 hours of sun per day.

When is the best time to visit Marthas Vineyard?

The best months to visit Marthas Vineyard 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 perfect for sunbathing in the months from July to August when the maximum temperature reaches above 26°C (72°F)

The sea is best for swimming between May and November when the sea temperature is above the average 11°C (51°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Can you sunbathe in Marthas Vineyard year round?

No, you can't sunbathe in Marthas Vineyard 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 best for sunbathing in the months from July to August when the maximum temperature reaches above 26°C (72°F)

More info about the annual temperatures and sunshine.

Can you swim in Marthas Vineyard year round?

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

The warmest sea water temperatures in Marthas Vineyard are found in August when they peak at 19°C (66°F) and lowest in February when they dip to 4°C (39°F).

The sea temperature is above average for swimming between May and November when the sea temperature is above 11°C (51°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 Marthas Vineyard?

The hottest month in Marthas Vineyard is July when the average maximum temperature is very warm and perfect for sunbathing on clear days 26°C (80°F), average temperature is 22°C (71°F) and average minimum temperature is 18°C (64°F).

More info about the annual temperatures and sunshine.

When is the coldest month in Marthas Vineyard?

The coolest month in Marthas Vineyard is January when the average maximum temperature is 4°C (38°F), average temperature is -1°C (31°F) and average minimum temperature is -5°C (24°F).

More info about the annual temperatures and sunshine

When is the sunniest month in Marthas Vineyard?

The sunniest days in Marthas Vineyard are in March which has the most hours of sunshine per day. In March the sunshine percentage is 59% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.7 hours of sunshine per day.

More info about the annual sunshine.

When is the least sunny month in Marthas Vineyard?

December has the least sunshine. In December the sunshine percentage is 37% making it very cloudy and overcast with some periods of sunshine. There are 5.0 hours of sunshine per day.

More info about the annual sunshine.

When is the driest month in Marthas Vineyard?

The driest month in Marthas Vineyard is January with 6.6cm (2.6inches) of rain and February has the fewest days of rain with 10.7 days with some rain, a pretty wet time to visit the beach.

More info about the annual rainfall

When is the wettest month in Marthas Vineyard?

The wettest month in Marthas Vineyard is April with 11.8cm (4.6inches) of rain and 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 Marthas Vineyard?

The coldest sea water temperatures in Marthas Vineyard are found in February when they dip to 4°C (39°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 Marthas Vineyard?

The warmest sea water temperatures in Marthas Vineyard are found in August when they peak at 19°C (66°F) which is comfortable for swimming though some may prefer warmer water.

More info about the annual sea temperatures.

When is the most humid month in Marthas Vineyard?

The most humid month in Marthas Vineyard is July with a dew point (an indicator of humidity) of 20°C (69°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 Marthas Vineyard?

The least humid month in Marthas Vineyard is February with a dew point of -1°C (30°F) which is a bit dry for some.

More info about the annual humidity.

When is the windiest month in Marthas Vineyard?

The most windy month in Marthas Vineyard is February when the average maximum windspeed is 31KM/H (19MPH) and the average wind speed is 18KM/H (11MPH).

More info about the annual wind conditions.

Annual Temperature for Marthas Vineyard

The hottest month in Marthas Vineyard is July when the average maximum temperature is 26°C (80°F), average temperature is 22°C (71°F) and average minimum temperature is 18°C (64°F).

The coolest month in Marthas Vineyard is January when the average maximum temperature is 4°C (4°F), average temperature is -1°C (31°F) and average minimum temperature is -5°C (24°F).

Annual Sunshine for Marthas Vineyard

The longest days in Marthas Vineyard are in June, with an average of 15.1 hours of daylight per day. December has the shortest days with an average of 9.2 hours of daylight per day.

The sunniest days in Marthas Vineyard are in March which has the most hours of sunshine per day. The sunshine percentage is 59% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.7 hours of sunshine per day.

December has the least sunshine. The sunshine percentage is 37% making it very cloudy and overcast with some periods of sunshine. There are 5.0 hours of sunshine per day.

The ultraviolet index is the highest in July when it reaches 9.5 and lowest in December when it reaches 1.4.

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 Marthas Vineyard

The warmest sea water temperatures in Marthas Vineyard are found in August when they peak at 19°C (66°F) and lowest in February when they dip to 4°C (39°F).

The sea is best for swimming between May and November when the temperature is above 11°C (51°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Annual Rainfall for Marthas Vineyard

The wettest month in Marthas Vineyard is April with 11.8cm (4.6inches) of rain and the most days of rain with 14.6 days with some rain, a pretty wet time to visit the beach.

The driest month in Marthas Vineyard is January with 6.6cm (2.6inches) of rain and February has the fewest days of rain with 10.7 days with some rain, a pretty wet time to visit the beach.

Annual Humidity for Marthas Vineyard

The most humid month in Marthas Vineyard is July with a dew point (an indicator of humidity) of 20°C (69°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

The least humid month in Marthas Vineyard is February with a dew point of -1°C (30°F) which is a bit dry for some.

Annual Wind Speed for Marthas Vineyard

The most windy month in Marthas Vineyard is February when the average maximum windspeed is 31KM/H (19MPH) and the average wind speed is 18KM/H (11MPH).

The least windy month in Marthas Vineyard is August when the average maximum windspeed is 23KM/H (14MPH) and the average wind speed is 11KM/H (7MPH).

Best Beaches

PICK A MONTH FOR BEST BEACHES IN UNITED STATES

Monthly Averages

Suggested Beaches

Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

Booking.com Search FlightsImage

Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.