Regional Guide · 8 beaches
Potomac River Beaches
The lower Potomac — where it widens into the Chesapeake near Point Lookout — has beaches and waterfront access that often feel more Bay than river. Swimming is generally permitted at state parks along this stretch, though upper Potomac is not swimmable due to water quality.
Current Conditions
Average water temperature: 63°F
Across 8 monitored stations on the Potomac River.
When to Go
May through September at the mouth. Upper river sections are not recommended for swimming.
Watch Out For
Water quality varies significantly by location. Stick to designated swim beaches at state parks.
Maryland · 6
All Maryland beaches →Purse State Park
Charles County, MD
73
Great day for fossil hunting.
63°F water 61°F air 12 to 16 mph wind
St. Clement's Island State Park
St. Mary's County, MD
72
Great day for a beach walk.
63°F water
Friendship Farm Park
Charles County, MD
64
Great day for a beach walk.
63°F water 61°F air 14 mph wind
Chapel Point State Park
Charles County, MD
64
Great day for a beach walk.
63°F water 61°F air 14 mph wind
Chapman State Park
Charles County, MD
61
Great day for a beach walk.
63°F water 61°F air 13 to 16 mph wind
Piney Point Lighthouse Museum & Historic Park
St. Mary's County, MD
55
Decent day for a beach walk.
63°F water 61°F air 14 to 17 mph wind