World sea water temperatures

Water temperature in Au Sable (MI) in May

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Is it warm enough to swim in Au Sable in May? Average water temperature in Au Sable in May is 43.3°F and therefore is not suitable for comfortable swimming. The warmest sea in Au Sable in May is 56.5°F, and the coldest is 35.2°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Au Sable

Changes water temperature in Au Sable in May 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 142.1°F40.5°F37.2°F42.3°F
May 241.7°F41.4°F36.7°F42.1°F
May 341°F41.9°F35.2°F41.9°F
May 440.8°F41.4°F35.6°F42.6°F
May 540.8°F40.5°F36.1°F42.4°F
May 641°F41.9°F38.1°F41.9°F
May 741.7°F43.2°F36.5°F43.2°F
May 841°F43.2°F36.5°F44.2°F
May 940.8°F42.8°F40.8°F42.8°F
May 1042.3°F43.3°F37.2°F44.4°F
May 1142.3°F44.4°F38.3°F44.4°F
May 1243°F43.5°F39.7°F43.5°F
May 1342.8°F43.3°F38.3°F46.2°F
May 1442.1°F43.5°F39°F47.1°F
May 1542.8°F44.8°F37.9°F47.3°F
Day 2025 2024 Min Max
May 1642.1°F45.3°F37.8°F47.1°F
May 1744.8°F45.1°F38.5°F47.5°F
May 1845.1°F45.5°F39°F49.3°F
May 1944.8°F49.5°F40.1°F50.2°F
May 2044.2°F48.4°F39.6°F51.4°F
May 2144.8°F48.7°F38.7°F51.4°F
May 2245.5°F51.1°F39.9°F52.2°F
May 2343.3°F50°F40.8°F53.1°F
May 2443.3°F49.1°F43.3°F49.1°F
May 2542.6°F49.8°F42.6°F49.8°F
May 2644.1°F52.7°F40.3°F53.8°F
May 2744.1°F52°F40.8°F54°F
May 2845.5°F51.6°F41.4°F55.6°F
May 2945.7°F53.2°F43.7°F53.2°F
May 3046.2°F52°F46°F56.1°F
May 3146.8°F52.7°F46.2°F55°F
Au Sable water temp chart in May

Average water temperature in Au Sable in May over a decade

20162017201820192020
45.1°F43.5°F41°F38.8°F43.3°F
20212022202320242025
44.4°F42.1°F43.5°F46.4°F43.2°F

Au Sable water temperature during other months:

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

Where is the warm sea water in May?

Want to know where the water temperature in May is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Au Sable 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.

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