92°
Chance Showers And Thunderstorms
79%
7
Dorchester County, MD · Chesapeake Bay
Great Marsh Park (Gerry Boyle Park)
Somerset Ave, Cambridge, MD 21613
A Cambridge waterfront park at the end of Somerset Avenue on the Choptank River. Small sandy beach, boat ramp, docks, playgrounds, pavilions, and walking paths. Free and pet-friendly — Cambridge's easy-access public waterfront.
Today's Conditions
Skip the beach today.
79% rain · Thunderstorms · High nettle risk
Full NWS forecast for This Afternoon
A chance of showers and thunderstorms before 5pm, then showers and thunderstorms. Mostly cloudy, with a high near 92. Heat index values as high as 103. South wind around 13 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 77. Southwest wind 7 to 12 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Weather
- 92°F air — hot — hydrate and seek shade
- 79% rain — wet day — beach day is off
Water
- 84°F water — warm — full-day swim weather
- High nettle risk — 80% probability — reconsider swimming
Safety
- Thunderstorms — stay off the water when storms approach
- NWS alert active — severe thunderstorm watch issued july 18 at 2:14pm edt until july 18 at 9:00pm edt by nws wakefield va
4 /100
skip
0 Swim
11 Sunbathe
0 Walk
0 Fish
17 Photo
Best for photography today
Weather alert in effect
Severe Thunderstorm Watch issued July 18 at 2:14PM EDT until July 18 at 9:00PM EDT by NWS Wakefield VA
Heat Advisory issued July 18 at 9:28AM EDT until July 18 at 8:00PM EDT by NWS Wakefield VA
Atmosphere
Air Temp
92°F
Thunderstorms and Rain and Fog/Mist
Wind
13 mph
S
Rain
79%
This Afternoon
UV Peak
9 Very High
High 11 AM–03 PM · burn in ~22m
Burn-free before 09 AM & after 05 PM
Tomorrow
87°F
Mostly Sunny
Water
Water Temp
84°F
Swimming weather
Sea Nettles
High nettle risk
80% probability · Gooses Reef buoy
Sun & Moon
Sunrise
5:54 AM
Sunset
8:26 PM
Moon · 18%
Waxing Crescent
Neap tides — smaller range
7-Day Beach Day Forecast
87°
Mostly Sunny
8%
82
86°
Sunny
11%
83
88°
Showers And Thunderstorms Likely
68%
16
85°
Showers And Thunderstorms Likely
75%
14
80°
Slight Chance Rain Showers
20%
77
83°
Sunny
9%
85
What to Bring Today
- critical SPF 50 sunscreen UV index 9 — very high
- recommended Sturdy umbrella + sand anchor 13 mph wind
- optional Swimsuit - water is swimmable Water is 84°F
- recommended Rain cover + dry bag 79% chance of rain
- critical Extra water / electrolytes 92°F - heat risk
- recommended Cooling towel or hat sustained heat
Always remember water bottle, trash bag (leave no trace).
Best Fishing Times Today
Solunar theory: fish activity peaks at moon transits (major) and moonrise/moonset (minor). All times local.
Minor
10:20 PM - 11:20 PM
Major
3:40 AM - 5:40 AM
Minor
10:10 AM - 11:10 AM
Major
3:50 PM - 5:50 PM
Beach Info
Parking
Free lot.
Dogs
Leashed dogs welcome throughout the park.
Entry Fee
Free
Address
Somerset Ave, Cambridge, MD 21613
Amenities
Frequently Asked
Is it safe to swim at Great Marsh Park (Gerry Boyle Park) today?
Great Marsh Park (Gerry Boyle 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 Great Marsh Park (Gerry Boyle Park) dog-friendly?
Leashed dogs welcome throughout the park.
Is there an entry fee at Great Marsh Park (Gerry Boyle Park)?
Entry to Great Marsh Park (Gerry Boyle Park) is free.
Are there lifeguards at Great Marsh Park (Gerry Boyle Park)?
No lifeguards are stationed at Great Marsh Park (Gerry Boyle Park). Swim at your own risk and keep close watch on children.
What amenities are at Great Marsh Park (Gerry Boyle Park)?
Amenities at Great Marsh Park (Gerry Boyle Park) include beach, boat ramp, docks, pavilion, playgrounds, playing field, walking paths.
When is the water warmest at Great Marsh Park (Gerry Boyle 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 Great Marsh Park (Gerry Boyle Park) located?
Great Marsh Park (Gerry Boyle Park) is in Dorchester County, MD, at Somerset Ave, Cambridge, MD 21613.
Nearby Beaches
Updated · Data from NOAA, NWS