77°
Sunny
1%
77
Middlesex County, CT · Atlantic Ocean
Hammonasset Beach State Park
1288 Boston Post Rd, Madison, CT 06443
Connecticut's largest shoreline state park — 2 miles of Long Island Sound beach in Madison. Calmer sound water (not open Atlantic), nature center, camping, and bike paths through coastal forest. The default CT beach day from anywhere along the I-95 corridor.
Today's Conditions
Ideal for a beach walk.
77°F air
Full NWS forecast for Today
Sunny. High near 77, with temperatures falling to around 74 in the afternoon. South wind 1 to 6 mph.
Tonight
Showers and thunderstorms likely after 2am. Mostly cloudy, with a low around 63. South wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Weather
- 77°F air — ideal beach weather
- Sunny skies — clear conditions
Water
- 66°F water — chilly — expect a gasp entering
74 /100
great
62 Swim
85 Sunbathe
88 Walk
80 Photo
Best for walking today
Water level 0.7 ft above predicted
Observed water level is running higher than the astronomical tide prediction. Expect a narrower beach, faster-rising water, and stronger near-shore currents than the tide chart suggests.
Atmosphere
Air Temp
77°F
Clear
Wind
1 to 6 mph
S
Rain
1%
Today
UV Peak
8 Very High
High 11 AM–03 PM · burn in ~25m
Burn-free before 08 AM & after 05 PM
Tomorrow
77°F
Showers And Thunderstorms Likely
Water
Water Temp
66°F
Refreshing
Next Low Tide
2:44 PM
1.1 ft · in 1m
Water Quality
Clean
10 MPN/100mL · Enterococcus
USGS · sampled 10mo ago
Rip Current Risk · Regional Reference
No zone-specific NWS forecast for this beach (ANZ331)
The OKX office's Surf Zone Forecast doesn't cover this beach's forecast zone directly. Nearby coastal zones it does cover are listed below — regional reference only, not a substitute for the conditions at this specific beach.
- NYZ075 Kings (Brooklyn) — Coney Island Beach and Manhattan Beach Moderate
- NYZ178 Southern Queens — Jacob Riis Park and Rockaway Beach Moderate
- NYZ179 Southern Nassau — Atlantic Beach, Long Beach, Lido Beach, Moderate
- NYZ080 Southwestern Suffolk — Gilgo State Park and Robert Moses State Park Moderate
- NYZ081 Southeastern Suffolk — Smith Point, Cupsogue Beach, Moderate
Sun & Moon
Sunrise
5:18 AM
Sunset
8:27 PM
Moon · 80%
Waxing Gibbous
Neap tides — smaller range
Today's Tides
7-day chart →| Time | Type | Height |
|---|---|---|
| 2:39 AM | Low | 0.6 ft |
| 8:44 AM | High | 5.6 ft |
| 2:44 PM | Low | 1.1 ft |
| 8:58 PM | High | 6.6 ft |
7-Day Beach Day Forecast
77°
Showers And Thunderstorms Likely
64%
26
76°
Chance Rain Showers
50%
54
82°
Sunny
7%
77
80°
Sunny
2%
77
82°
Mostly Sunny then Slight Chance Showers And Thunderstorms
16%
44
84°
Slight Chance Rain Showers
22%
67
What to Bring Today
- critical SPF 50 sunscreen UV index 8 — very high
- recommended Umbrella or shade warm day, light wind
- recommended Wetsuit or expect a chill Water is 66°F
Always remember water bottle, trash bag (leave no trace).
Beach Info
Parking
Large lots; entry fee in season.
Dogs
Dogs prohibited on the swimming beach Apr 1 – Sept 30; leashed permitted Sept 30 – Apr 1. Leashed allowed in picnic areas year-round; campground allows pets after Columbus Day until May 1. Max 7-ft leash.
Entry Fee
Free with CT plates via Passport to the Parks. Out-of-state vehicles $15–$22 in season; $7 after 4 PM.
Address
1288 Boston Post Rd, Madison, CT 06443
Amenities
7-Day Tide Chart →
Full high/low predictions for the next week at Hammonasset Beach State Park.
7-Day Weather →
Extended forecast for Hammonasset Beach State Park from the National Weather Service.
Frequently Asked
Is Hammonasset Beach State Park dog-friendly?
Dogs prohibited on the swimming beach Apr 1 – Sept 30; leashed permitted Sept 30 – Apr 1. Leashed allowed in picnic areas year-round; campground allows pets after Columbus Day until May 1. Max 7-ft leash.
Is there an entry fee at Hammonasset Beach State Park?
Entry to Hammonasset Beach State Park is free.
Are there lifeguards at Hammonasset Beach State Park?
Yes. Seasonal lifeguards patrol Hammonasset Beach State Park during the summer swim season (typically Memorial Day through Labor Day). Outside that window, swim at your own risk.
What amenities are at Hammonasset Beach State Park?
Amenities at Hammonasset Beach State Park include lifeguards, restrooms, showers, snack bar, campground, nature center, bike paths.
When is the water warmest at Hammonasset Beach State Park?
Atlantic water temperatures peak in August. Northern beaches (ME, NH, MA) run cool — typically 60-68°F at the summer peak. Mid-Atlantic (NJ, DE, MD, VA) hits 74-76°F. The Carolinas and Florida Atlantic warm into the 80s and stay swimmable from May through October.
Where is Hammonasset Beach State Park located?
Hammonasset Beach State Park is in Middlesex County, CT, at 1288 Boston Post Rd, Madison, CT 06443.
Nearby Beaches
Updated · Data from NOAA, NWS