Sea Street Beach, East Dennis is an ocean beach in Dennis, Massachusetts.
What to expect
Parking
Paid lot Beach sticker or daily pass required during posted beach hours
Swimming
Allowed water tested by the state
Dogs
No pets on any Dennis beach or beach lot from the Friday of Memorial Day weekend through Labor Day; West Dennis Beach extends the ban west of the middle bathhouse from April 1. That's the town-wide default; watch for posted signs here.
Getting in
Parking
Paid lot
CostBeach sticker or daily pass required during posted beach hoursStickerDennis resident vehicle pass, weekly pass or daily pass
Sea St (East Dennis) lot
Details unconfirmed
Sea St (East Dennis) lot
CostBeach sticker or daily pass required during posted beach hours
the town's beach regulations list Sea Street Beach, East Dennis as a public parking area
Access points along this beach
Tides & weather
Tide and sun: NOAA astronomy · forecast: NWS, up to 7 days
Show the full year
Average water temperature at Sea Street Beach, East Dennis by month, in °F| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| Water °F | 40° | 39° | 42° | 49° | 55° | 63° | 69° | 68° | 66° | 60° | 50° | 44° |
|---|
Monthly averages from NOAA, Chatham (2022 to 2024). Today's reading is in the conditions above.
Common questions
Is Sea Street Beach, East Dennis in Dennis open today?
Open, no advisory on record in the latest MA DPH posting (updated 2026-09-13). MA DPH is the authority. Check the status the morning you go.
Is there parking at Sea Street Beach, East Dennis, and what does it cost?
Paid lot (Beach sticker or daily pass required during posted beach hours). Sea St (East Dennis) lot
Are there restrooms at Sea Street Beach, East Dennis?
Public restrooms are listed near the beach. Seasonal hours are common, so they may be closed off-season.
What's the water temperature at Sea Street Beach, East Dennis?
Water at Sea Street Beach, East Dennis averages about 39°F in February and 69°F in July, based on NOAA readings at Chatham from 2022 to 2024. For today's temperature, see the conditions above.
What rules should I know at Sea Street Beach, East Dennis?
Dogs prohibited Memorial Day weekend through Labor Day, and whenever piping plovers are nesting.
Can you swim at Sea Street Beach, East Dennis?
Yes. Sea Street Beach, East Dennis has no swimming advisory in the latest MA DPH posting (updated 2026-09-13). Check again the morning you go.
Are dogs allowed at Sea Street Beach, East Dennis?
No pets on any Dennis beach or beach lot from the Friday of Memorial Day weekend through Labor Day; West Dennis Beach extends the ban west of the middle bathhouse from April 1. That's the town-wide default; watch for posted signs here.
Do you need a beach sticker to park at Sea Street Beach, East Dennis?
A beach sticker applies to parking here. Beach sticker or daily pass required during posted beach hours.