Great Lakes water temperature in August

In August sea water temperature in some cities on the Great Lakes coast is above 68°F and it is enough for comfortable bathing. The warmest average water temperature Great Lakes in August is 77.2°F (in Cleveland), and the coldest sea surface temperature is 61.2°F (in Duluth). To find out the water temperature today and in the coming days, go to Current water temperature of the Great Lakes

List of Great Lakes

Where you can swim in the Great Lakes in August?

This data on the average monthly surface water temperature on the Great Lakes coast in August. To see the details, select the country and then the city of your interest. Besides water temperature, you can also get information about the weather for today, tomorrow and the upcoming days, surf forecast, as well as the data on sunrise/sunset and moonrise/moonset at a given point on any given day.

Countries bordering the Great Lakes

Places with the warmest average water temperature in Great Lakes in August. Also indicated are the maximum and minimum temperatures in August for these locations based on observations over the past 10 years

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Our report for Great Lakes is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.