Mackinac Island water temp

This data the coastal Mackinac Island water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current water temperature in Mackinac Island

Water temperature in Mackinac Island today is 61.7°F. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Huron near Mackinac Island was recorded in 2018 and was 67.1°F, and the coldest was recorded in 2014 at 56.7°F. Water temperature in Mackinac Island is expected to drop to 59.5°F in the next 10 days. September average water temperature in Mackinac Island is 62.8°F, the minimum temperature is 56.1°F, and the maximum is 70.5°F.

The swimming season in Mackinac Island lasts from July to August. During those months, Mackinac Island water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Mackinac Island in winter reaches 35.6°F, in spring 37°F, in summer the average temperature rises to 62.6°F, and in autumn it is 54.7°F.

Mackinac Island water temperature now

Surf Forecast in Mackinac Island for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Mackinac Island. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Mackinac Island. Data in table shown for September 23, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Mackinac Island

Mackinac Island weather forecast

Current temperature and weather

Data in a table show Mackinac Island temperature today (September 23, 2025). For more information and forecast for a few days, go to the weather forecast Mackinac Island.

0-3 h	3-6 h	6-9 h	9-12 h
60.3°F	59.9°F	60.3°F	61.2°F

12-15 h	15-18 h	18-21 h	21-24 h
61.9°F	62.1°F	61°F	59.7°F

Mackinac Island water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Mackinac Island. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Mackinac Island on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Mackinac Island

The nearest beaches and cities from Mackinac Island with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Evergreen Shores	61°F	62.6°F		0' 11"
Cheboygan	61.2°F	62.6°F		1' 0"
Hessel	59.9°F	62.6°F		1' 1"
Cedarville	60.3°F	62.6°F		1' 1"
Wilderness State Park	62.6°F	64.4°F		0' 6"
Sturgeon Bay	64°F	62.6°F		0' 4"
Brevort	62.1°F	66.2°F		0' 5"
Huron Beach	61°F	64.4°F		1' 1"
Hammond Bay	61°F	64.4°F		1' 1"
Epoufette	62.8°F	66.2°F		0' 7"

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Straits of Mackinac

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Our report for Mackinac Island 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.