The highest day temperature in August 2025 was 92°F. The lowest night temperature was 60°F. The average values for day and night temperatures during August were 80.6°F и 71.2°F respectivly.

The average sea surface temperature in August 2025 for Fenwick Island was 78.5°F. The maximum and minimum values were 76.2°F and 82.4°F respectively.

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

Precipitation total in August for Fenwick Island is 1.5 in. It makes august one of the most rainy months of the year.

The average wind speed in August is 7.9 mph. It makes August one of the most windless months of the year for Fenwick 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 Fenwick Island in August is 7.7 hours.