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Water temperature in Little Traverse Bay (MI) in September

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Is it warm enough to swim in Little Traverse Bay in September? Average water temperature in Little Traverse Bay in September is 66.9°F and therefore is not suitable for comfortable swimming. The warmest water in Little Traverse Bay in September is 72°F, and the coldest is 61.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Little Traverse Bay

Changes water temperature in Little Traverse Bay in September 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
September 166.4°F68.5°F66.4°F71.8°F
September 266.6°F68.4°F66.2°F72°F
September 365.8°F68.4°F65.8°F71.6°F
September 464.9°F68.7°F64.9°F71.2°F
September 564.4°F68.4°F64.4°F71.1°F
September 663.9°F67.8°F63.9°F71.1°F
September 763.9°F67.3°F63.9°F71.2°F
September 8 66.4°F65.1°F71.2°F
September 9 66.4°F65.1°F71.2°F
September 10 66.7°F64.9°F70.9°F
September 11 66.6°F64.6°F70.5°F
September 12 66.7°F64.9°F70.2°F
September 13 67.5°F64.2°F70°F
September 14 67.5°F63.1°F70.2°F
September 15 68°F63.1°F69.8°F
Day 2025 2024 Min Max
September 16 68°F63.3°F70.2°F
September 17 68°F63.3°F70.5°F
September 18 67.6°F63.1°F69.6°F
September 19 68°F63°F69.1°F
September 20 67.8°F62.8°F69.4°F
September 21 68.2°F62.2°F69.3°F
September 22 67.5°F61.9°F68.5°F
September 23 66.9°F61.9°F68.2°F
September 24 66.6°F62.1°F68.7°F
September 25 65.8°F62.2°F68.7°F
September 26 66.2°F62.8°F68.5°F
September 27 66°F61.5°F67.6°F
September 28 66°F62.4°F67.1°F
September 29 66.6°F62.8°F66.9°F
September 30 66.2°F62.1°F66.4°F
Little Traverse Bay water temp chart in September

Average water temperature in Little Traverse Bay in September over a decade

20152016201720182019
68.4°F69.4°F66.4°F67.8°F65.3°F
20202021202220232024
65.3°F67.8°F68.7°F65.1°F67.3°F

Little Traverse Bay sea state in September

Chart comparing the height of waves in Little Traverse Bay in September 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.

Waves height in Little Traverse Bay in September

Little Traverse Bay water temperature during other months:

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

Water temperature Lake Michigan in September

Where is the warm sea water in September?

Want to know where the water temperature in September 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

Temperature in neighboring cities

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

AvrMinMax
Petoskey66.9°F61.5°F72°F
Charlevoix66.4°F61°F71.4°F
Fisherman Island66.4°F60.6°F71.4°F
Sturgeon Bay65.5°F59.7°F71.6°F
Beaver Island65.8°F60.3°F71.4°F
Torch Lake66.9°F60.4°F72.3°F
Wilderness State Park64.6°F58.3°F71.6°F
Christmas Cove66.4°F60.1°F72.3°F
Northport66.7°F60.3°F72.7°F
Grand Traverse Bay67.1°F60.4°F72.9°F

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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 Little Traverse Bay 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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