Mostly Cloudy
Baltimore County, MD · Chesapeake Bay
Hart-Miller Island State Park
Boat-access-only island state park in the upper Chesapeake. A full mile of sandy beach and primitive camping only reachable by private boat. One of the most unique beach experiences in Maryland.
Today's Conditions
Great day for photography.
82°F water · 85°F air
Full NWS forecast for Today
Mostly cloudy, with a high near 85. East wind around 13 mph, with gusts as high as 18 mph.
Tonight
Partly cloudy, with a low around 71. Southeast wind 5 to 13 mph, with gusts as high as 18 mph.
Weather
- 85°F air — ideal beach weather
- Cloud cover — overcast reduces uv exposure but the vibe too
Water
- 82°F water — warm — full-day swim weather
Best for photography today
Atmosphere
Water
Sun & Moon
7-Day Beach Day Forecast
Mostly Sunny
Sunny
Sunny
Sunny
Mostly Sunny
Mostly Sunny then Slight Chance Showers And Thunderstorms
What to Bring Today
- recommended Sturdy umbrella + sand anchor 13 mph wind
- optional Swimsuit - water is swimmable Water is 82°F
Always remember water bottle, trash bag (leave no trace).
Beach Info
Parking
Boat access only. Launch from Rocky Point Park or elsewhere.
Dogs
Dogs permitted on leash.
Entry Fee
Free (boat required)
Address
Hart-Miller Island, MD
Amenities
Frequently Asked
Is it safe to swim at Hart-Miller Island State Park today?
Hart-Miller Island 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. No lifeguards are on duty, so check the day's conditions and swim with caution. Always review the current advisories, surf, and rip-current notes before getting in the water.
Is Hart-Miller Island State Park dog-friendly?
Dogs permitted on leash.
Is there an entry fee at Hart-Miller Island State Park?
Entry to Hart-Miller Island State Park is free.
Are there lifeguards at Hart-Miller Island State Park?
No lifeguards are stationed at Hart-Miller Island State Park. Swim at your own risk and keep close watch on children.
What amenities are at Hart-Miller Island State Park?
Amenities at Hart-Miller Island State Park include primitive camping, restrooms, picnic areas.
When is the water warmest at Hart-Miller Island State Park?
The Chesapeake warms quickly — water temperatures peak in late July and August, typically 78-82°F. Swimming comfortable from mid-June through September.
Where is Hart-Miller Island State Park located?
Hart-Miller Island State Park is in Baltimore County, MD, at Hart-Miller Island, MD.
Nearby Beaches
Updated · Data from NOAA, NWS