Alpena water temp

This data the coastal Alpena 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 Alpena

Water temperature in Alpena today is 64.6°F. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Huron near Alpena was recorded in 2017 and was 67.8°F, and the coldest was recorded in 2014 at 56.7°F. Water temperature in Alpena is expected to drop to 59°F in the next 10 days. September average water temperature in Alpena is 64.2°F, the minimum temperature is 55°F, and the maximum is 71.6°F.

The swimming season in Alpena lasts from July to August. During those months, Alpena water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Alpena in winter reaches 35.4°F, in spring 39.4°F, in summer the average temperature rises to 64.6°F, and in autumn it is 55.4°F.

Alpena water temperature now

Surf Forecast in Alpena 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 Alpena. 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 Alpena. 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 Alpena

Alpena weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
62.6°F	61.9°F	60.8°F	60.6°F

12-15 h	15-18 h	18-21 h	21-24 h
61.7°F	61.9°F	60.4°F	60.1°F

Alpena water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Alpena. 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 Alpena 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 Alpena

The nearest beaches and cities from Alpena 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
Thunder Bay	64.9°F	62.6°F		0' 5"
Ossineke	65.1°F	62.6°F		0' 5"
Black River	65.7°F	62.6°F		0' 6"
Harbor View	61.2°F	59°F		0' 7"
Presque Isle Harbor	61.2°F	59°F		0' 7"
Alcona	65.8°F	62.6°F		0' 4"
Greenbush	65.7°F	69.8°F		0' 4"
Rogers City	58.8°F	59°F		0' 7"
Manitou Beach	59.2°F	59°F		0' 7"
Evergreen Beach	59.2°F	59°F		0' 7"

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Our report for Alpena 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.