82°
Sunny
3%
85
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.
82°F air · 71°F water
Full NWS forecast for Today
Sunny. High near 82, with temperatures falling to around 79 in the afternoon. Southeast wind 1 to 5 mph.
Tonight
Mostly clear, with a low around 65. South wind 0 to 5 mph.
Weather
- 82°F air — ideal beach weather
- Sunny skies — clear conditions
Water
- 71°F water — swimmable, refreshing
82 /100
great
80 Swim
84 Sunbathe
87 Walk
83 Photo
Best for walking today
Water level 0.6 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
82°F
Clear
Wind
1 to 5 mph
SE
Rain
3%
Today
UV Peak
8 Very High
High 11 AM–03 PM · burn in ~25m
Burn-free before 08 AM & after 05 PM
Tomorrow
83°F
Sunny
Water
Water Temp
71°F
Refreshing
Next Low Tide
3:53 PM
0.5 ft · in 40m
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
5:27 AM
Sunset
8:23 PM
Moon · 5%
Waning Crescent
Spring tides — bigger range
Tides
| Time | Type | Height |
|---|---|---|
| 3:48 AM | Low | -0.0 ft |
| 9:53 AM | High | 6.1 ft |
| 3:53 PM | Low | 0.5 ft |
| 10:12 PM | High | 7.4 ft |
| Time | Type | Height |
|---|---|---|
| 4:45 AM | Low | -0.2 ft |
| 10:50 AM | High | 6.4 ft |
| 4:52 PM | Low | 0.3 ft |
| 11:09 PM | High | 7.5 ft |
| Time | Type | Height |
|---|---|---|
| 5:39 AM | Low | -0.4 ft |
| 11:45 AM | High | 6.6 ft |
| 5:49 PM | Low | 0.1 ft |
| Time | Type | Height |
|---|---|---|
| 12:04 AM | High | 7.5 ft |
| 6:30 AM | Low | -0.4 ft |
| 12:38 PM | High | 6.8 ft |
| 6:44 PM | Low | 0.0 ft |
| Time | Type | Height |
|---|---|---|
| 12:57 AM | High | 7.4 ft |
| 7:21 AM | Low | -0.4 ft |
| 1:31 PM | High | 6.9 ft |
| 7:38 PM | Low | 0.1 ft |
| Time | Type | Height |
|---|---|---|
| 1:50 AM | High | 7.2 ft |
| 8:11 AM | Low | -0.3 ft |
| 2:22 PM | High | 7.0 ft |
| 8:33 PM | Low | 0.2 ft |
| Time | Type | Height |
|---|---|---|
| 2:42 AM | High | 6.9 ft |
| 9:00 AM | Low | -0.1 ft |
| 3:13 PM | High | 7.0 ft |
| 9:28 PM | Low | 0.3 ft |
High/low predictions from NOAA station 8465705, refreshed on every build. Times shown local.
7-Day Beach Day Forecast
83°
Sunny
0%
84
88°
Sunny
0%
79
91°
Sunny
7%
74
86°
Slight Chance Rain Showers then Mostly Sunny
15%
79
84°
Sunny
5%
84
83°
Mostly Sunny then Slight Chance Showers And Thunderstorms
23%
44
What to Bring Today
- critical SPF 50 sunscreen UV index 8 — very high
- recommended Umbrella or shade warm day, light wind
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
Frequently Asked
Is it safe to swim at Hammonasset Beach State Park today?
Hammonasset Beach State Park shows a live water-quality reading (bacteria levels) and today's swim-safety score at the top of this page, refreshed on every update. Seasonal lifeguards patrol the swim area in summer — follow their flags. Always review the current advisories, surf, and rip-current notes before getting in the water.
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