Hammonasset Beach State Park

Book on the booking site
Get alerts

Availability

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

About this spot

Typical weather

Long Island Sound

Average water temperature
Average water temperature for Long Island Sound, January through DecemberEach point shows the monthly average water temperature in degrees Fahrenheit.36°JJanuary: average water temperature 36°F35°FFebruary: average water temperature 35°F64°MMarch: average water temperature 64°F63°AApril: average water temperature 63°F68°MMay: average water temperature 68°F68°JJune: average water temperature 68°F72°JJuly: average water temperature 72°F74°AAugust: average water temperature 74°F45°SSeptember: average water temperature 45°F46°OOctober: average water temperature 46°F48°NNovember: average water temperature 48°F40°DDecember: average water temperature 40°F

Water: Water Quality Portal — 45 field-sample stations

Nearby campgrounds

Hammonasset Picnic Shelter

Less than 1 mi away

Chatfield Hollow Picnic Shelter

7 mi away

Selden Neck State Park River Camping

Selden Neck State Park River Camping

12 mi away

Gillette Castle State Park River Camping

Gillette Castle State Park River Camping

13 mi away

Rocky Neck Picnic Shelter

Rocky Neck Picnic Shelter

17 mi away

Rocky Neck State Park

Rocky Neck State Park

17 mi away