The highest day temperature in July 2024 was 80°F. The lowest night temperature was 67°F. The average values for day and night temperatures during July were 76.5°F и 73.4°F respectivly.

The average sea surface temperature in July 2024 for Martha's Vineyard was 72.2°F. The maximum and minimum values were 67.8°F and 75.4°F respectively.

You can expect various weather conditions during July. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in July for Martha's Vineyard is 1.3 in. It makes july one of the most rainy months of the year.

The average wind speed in July is 10.4 mph. It makes July the most windless month of the year for Martha's Vineyard.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Martha's Vineyard in July is 8.6 hours.