Water temperature in Thompson (MI) in August

Is it warm enough to swim in Thompson in August? Average water temperature in Thompson in August is 67.6°F and therefore is not suitable for comfortable swimming. The warmest water in Thompson in August is 73.9°F, and the coldest is 61.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Thompson

Changes water temperature in Thompson in August 2025, 2024

To get an accurate forecast for the water temperature in Thompson for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Thompson, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.

Average water temperature in Thompson in August over a decade

Chart comparing the height of waves in Thompson in August over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

You can also view information about water temperature for other months by clicking on the month button below

The nearest locations with the average water temperature in August. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

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Our report for Thompson 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.