Hammonasset Beach State ParkAbout Hammonasset Beach State Park
Hammonasset Beach State Park is a coastal state park in Connecticut that preserves a long sandy barrier beach and adjacent marshes on Long Island Sound. It is Connecticut’s largest shoreline park and a major destination for swimming, picnicking and coastal recreation.
The park’s main attraction is its continuous sandy beach, backed by dunes, picnic areas and a large seasonal campground. Trails through coastal wetlands and woodlands provide birdwatching and nature-interpretation opportunities away from the surf.
The park is located on the Connecticut shoreline in the town of Madison, with road access from Interstate 95 and nearby coastal towns.
- Beach length: The park contains about 2 miles of continuous sandy shoreline on Long Island Sound, making it Connecticut’s largest shoreline park.
- Facilities: A large campground and picnic facilities support multi-day visits and birdwatching along the marsh and shoreline habitats.
Best Time to Visit Hammonasset Beach State Park
Summer for full beach experience; spring and autumn for quieter visits and birding.
Weather & Climate near Hammonasset Beach State Park
Temperate climate with warm summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -6°C to 28°C. Abundant rainfall (1202 mm/year), wettest in November, distributed fairly evenly throughout the year.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | - | -6° - 3° | -7° | 102 mm | - | - | 5.0 m/s | - | - |
| February | - | -6° - 4° | -6° | 91 mm | - | - | 5.0 m/s | - | - |
| March | - | -1° - 8° | -1° | 106 mm | - | - | 5.1 m/s | - | - |
| April | - | 3° - 14° | 6° | 108 mm | - | - | 4.8 m/s | - | - |
| May | - | 9° - 20° | 14° | 102 mm | - | - | 4.3 m/s | - | - |
| June | - | 14° - 25° | 19° | 93 mm | - | - | 4.0 m/s | - | - |
| July | - | 17° - 28° | 23° | 91 mm | - | - | 3.7 m/s | - | - |
| August | - | 17° - 27° | 22° | 99 mm | - | - | 3.6 m/s | - | - |
| September | - | 13° - 23° | 18° | 93 mm | - | - | 3.9 m/s | - | - |
| October | - | 6° - 17° | 12° | 97 mm | - | - | 4.3 m/s | - | - |
| November | - | 2° - 12° | 4° | 112 mm | - | - | 4.6 m/s | - | - |
| December | - | -3° - 6° | -3° | 108 mm | - | - | 4.8 m/s | - | - |
How to Get to Hammonasset Beach State Park
Hammonasset is on US‑1 (Boston Post Road) roughly halfway between New Haven and New London. It is easily reached by car; local commuter rail reaches nearby stations with short taxi or bus connections in season.
Tips for Visiting Hammonasset Beach State Park
- Arrive early to secure a shoreline parking spot during summer weekends.
- Walk the Meigs Point nature center trails for a quieter marsh and birding experience away from the main beach.
- For a calm visit, go midweek or in late afternoon when daytrippers begin to leave.