The highest day temperature in July 2026 was 96°F. The lowest night temperature was 63°F. The average values for day and night temperatures during July were 80.2°F и 69.2°F respectivly.

The average sea surface temperature in July 2026 for Block Island was 69.2°F. The maximum and minimum values were 67.2°F and 71.4°F respectively.

Most of the days in July are sunny but you can also expect cloudy and gloomy days.

Precipitation total in July for Block Island is 1.0 in. It makes july one of the least rainy months of the year.

The average wind speed in July is 10.9 mph. It makes July the most windless month of the year for Block Island.

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 Block Island in July is 8.6 hours.