Rock River water temp

This data the coastal Rock River 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 Rock River

Water temperature in Rock River today is 55.8°F. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Superior near Rock River was recorded in 2021 and was 59.7°F, and the coldest was recorded in 2018 at 47.8°F. Water temperature in Rock River is expected to drop to 50.9°F in the next 10 days. October average water temperature in Rock River is 54°F, the minimum temperature is 45.9°F, and the maximum is 63.1°F.

Throughout the year, the water temperature in Rock River does not rise above 68°F and therefore is not suitable for comfortable swimming. But on some days of July, August, the water temperature warms up to 68°F and above. The average water temperature in Rock River in winter reaches 36.1°F, in spring 35.4°F, in summer the average temperature rises to 57.6°F, and in autumn it is 54°F.

Rock River water temperature now

Surf Forecast in Rock River 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 Rock River. 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 Rock River. Data in table shown for October 17, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Rock River

Rock River weather forecast

Current temperature and weather

Data in a table show Rock River temperature today (October 17, 2025). For more information and forecast for a few days, go to the weather forecast Rock River.

0-3 h	3-6 h	6-9 h	9-12 h
52.7°F	53.1°F	54.1°F	56.1°F

12-15 h	15-18 h	18-21 h	21-24 h
60.1°F	62.8°F	62.1°F	60.8°F

Rock River water temperature by month

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

The nearest beaches and cities from Rock River 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
Christmas	56.3°F	62.6°F		1' 1"
Manistique	59.2°F	60.8°F		3' 9"
Gladstone	59°F	62.6°F		2' 11"
Nahma	58.6°F	60.8°F		3' 9"
Escanaba	59°F	62.6°F		2' 7"
Thompson	59.7°F	60.8°F		3' 9"
Garden	59.2°F	60.8°F		3' 9"
Garden Corners	59.2°F	60.8°F		3' 9"
Little Bay de Noc	59.4°F	62.6°F		2' 7"
Big Bay de Noc	59.5°F	60.8°F		2' 11"

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Our report for Rock River 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.