Mary Island State Park

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Availability

Each day shows how many of this campground’s sites are open.

About this spot

Typical weather

Saint Lawrence River

Average water temperature
Average water temperature for Saint Lawrence River, January through DecemberEach point shows the monthly average water temperature in degrees Fahrenheit.37°JJanuary: average water temperature 37°F34°FFebruary: average water temperature 34°F35°MMarch: average water temperature 35°F40°AApril: average water temperature 40°F50°MMay: average water temperature 50°F61°JJune: average water temperature 61°F71°JJuly: average water temperature 71°F73°AAugust: average water temperature 73°F70°SSeptember: average water temperature 70°F62°OOctober: average water temperature 62°F52°NNovember: average water temperature 52°F42°DDecember: average water temperature 42°F

Water: Alexandria Bay (NOAA 8311062)

Nearby campgrounds

Keewaydin State Park

3 mi away

Kring Point State Park

3 mi away

Dewolf Point State Park

Dewolf Point State Park

4 mi away

Wellesley Island State Park

Wellesley Island State Park

6 mi away

Grass Point State Park

7 mi away

Canoe Point State Park

9 mi away