Portage water temp

This data the coastal Portage 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 Portage

Water temperature in Portage today is 68.4°F. Based on our historical data over a period of ten years, the warmest water in this day in Portage was recorded in 2022 and was 70.9°F, and the coldest was recorded in 2014 at 63.7°F. Water temperature in Portage is expected to drop to 64.6°F in the next 10 days. September average water temperature in Portage is 69.3°F, the minimum temperature is 63.7°F, and the maximum is 74.8°F.

The swimming season in Portage lasts from July to September. During those months, Portage water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Portage in winter reaches 37.2°F, in spring 43.5°F, in summer the average temperature rises to 69.6°F, and in autumn it is 59.7°F.

Portage water temperature now

Surf Forecast in Portage 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 Portage. 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 Portage. Data in table shown for September 22, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Portage

Portage weather forecast

Current temperature and weather

Data in a table show Portage temperature today (September 22, 2025). For more information and forecast for a few days, go to the weather forecast Portage.

0-3 h	3-6 h	6-9 h	9-12 h
70.2°F	68.9°F	68.4°F	68.4°F

12-15 h	15-18 h	18-21 h	21-24 h
72.3°F	76.1°F	73.2°F	69.4°F

Portage water temperature by month

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

The nearest beaches and cities from Portage 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
Marquette Beach	68.4°F	77°F		0' 5"
Dune Acres	68.5°F	75.2°F		0' 6"
Hammond	68.9°F	77°F		0' 5"
Michigan City	68.5°F	75.2°F		0' 5"
Calumet Park	69.4°F	77°F		0' 5"
Whiting	70°F	77°F		0' 4"
Long Beach	68.4°F	75.2°F		0' 5"
South Shore Beach	71.1°F	77°F		0' 4"
Washington Park Beach	68.4°F	75.2°F		0' 5"
Oakwood Beach	71.2°F	78.8°F		0' 6"

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Our report for Portage 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.