The highest day temperature in July 2026 was 103°F. The lowest night temperature was 61°F. The average values for day and night temperatures during July were 83.9°F и 68.3°F respectivly.

The average sea surface temperature in July 2026 for Edgartown was 72.2°F. The maximum and minimum values were 69.2°F and 76.0°F respectively.

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

Precipitation total in July for Edgartown is 1.0 in.

The average wind speed in July is 10.8 mph. It makes July one of the most windless months of the year for Edgartown.

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 Edgartown in July is 8.5 hours.