Sullivan (Depot St.) Beach is an ocean beach in Dennis, Massachusetts.
What to expect
Parking
Resident sticker no on-site daily cash sales
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. Posted signs at the site take precedence.
Getting in
Parking
Resident sticker
Costno on-site daily cash salesStickersticker parking only where available
Depot St
Details unconfirmed
Depot St
Costno on-site daily cash salesSpacesvery limited / informal
Town fee page lists Depot Street Beach as one of two locations without on-site daily cash parking sales.
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 Sullivan (Depot St.) Beach 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 Sullivan (Depot St.) Beach 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 Sullivan (Depot St.) Beach, and what does it cost?
Resident sticker (no on-site daily cash sales). Depot St
What's the water temperature at Sullivan (Depot St.) Beach?
Water at Sullivan (Depot St.) Beach 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 Sullivan (Depot St.) Beach?
Dogs prohibited Memorial Day weekend through Labor Day, and whenever piping plovers are nesting.
Can you swim at Sullivan (Depot St.) Beach?
Yes. Sullivan (Depot St.) Beach has no swimming advisory in the latest MA DPH posting (updated 2026-09-13). Check again the morning you go.
Are dogs allowed at Sullivan (Depot St.) Beach?
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. Posted signs at the site take precedence.
Do you need a beach sticker to park at Sullivan (Depot St.) Beach?
Yes, parking here uses a resident sticker. no on-site daily cash sales.