The highest day temperature in August 2026 was 89°F. The lowest night temperature was 65°F. The average values for day and night temperatures during August were 80.8°F и 72.7°F respectivly.

The average sea surface temperature in August 2026 for Port Clinton was 80.2°F. The maximum and minimum values were 77.2°F and 82.2°F respectively.

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

Precipitation total in August for Port Clinton is 1.3 in. It makes august one of the most rainy months of the year.

The average wind speed in August is 8.5 mph. It makes August one of the most windless months of the year for Port Clinton.

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 Port Clinton in August is 8.7 hours.