Au Sable water temp

This data the coastal Au Sable sea 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 sea temperature in Au Sable

Water temperature in Au Sable today is 66°F. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Huron near Au Sable was recorded in 2017 and was 69.4°F, and the coldest was recorded in 2014 at 59.2°F. Sea water temperature in Au Sable is expected to drop to 61°F in the next 10 days. September average water temperature in Au Sable is 66.2°F, the minimum temperature is 57.9°F, and the maximum is 73°F.

The swimming season in Au Sable lasts from July to September. During those months, Au Sable water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Au Sable in winter reaches 36.7°F, in spring 37.9°F, in summer the average temperature rises to 64.4°F, and in autumn it is 57.2°F.

Au Sable water temperature now

Surf Forecast in Au Sable 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 Au Sable. 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 Au Sable. Data in table shown for September 26, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Au Sable

Au Sable weather forecast

Current temperature and weather

Data in a table show Au Sable temperature today (September 26, 2025). For more information and forecast for a few days, go to the weather forecast Au Sable.

0-3 h	3-6 h	6-9 h	9-12 h
58.6°F	55.6°F	55.6°F	59.2°F

12-15 h	15-18 h	18-21 h	21-24 h
67.8°F	69.8°F	65.5°F	62.1°F

Au Sable water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Au Sable. 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 Au Sable 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 Au Sable

The nearest beaches and cities from Au Sable 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
Alpena	64.6°F	62.6°F		0' 5"
Saginaw Bay	68.2°F	64.4°F		0' 4"
Harbor Beach	67.1°F	66.2°F		0' 6"
Bay City	68.4°F	73.4°F		0' 4"
Harbor View	61.2°F	59°F		0' 7"
Presque Isle Harbor	61.2°F	59°F		0' 7"
Lurgan Beach	63.9°F	62.6°F		0' 7"
Port Sanilac	66.7°F	69.8°F		0' 6"
Point Clark	63.7°F	62.6°F		0' 7"
Kincardine	63.7°F	62.6°F		0' 7"

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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.