The highest day temperature in July 2024 was 87°F. The lowest night temperature was 69°F. The average values for day and night temperatures during July were 79.3°F и 74.0°F respectivly.

The average sea surface temperature in July 2024 for Dewey Beach was 77.5°F. The maximum and minimum values were 71.8°F and 81.8°F respectively.

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

Precipitation total in July for Dewey Beach is 2.0 in. It makes july the most rainy month of the year.

The average wind speed in July is 8.9 mph. It makes July one of the most windless months of the year for Dewey Beach.

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 Dewey Beach in July is 8.7 hours.