About Mt. Sinai Marina
Mount Sinai (Cedar Beach) Mooring Permit If you are interested in a Mount Sinai (Cedar Beach) Mooring Permit, you can purchase one online. Contact the Parks Department at 631-451-6133 for more information. Learn More How to Acquire a Marina Dock Slip For information on obtaining a seasonal slip for your boat, please contact the Town Clerk’s Office. Transient slips are available for residents and non-residents at all our marinas. Transient Docking Seasonal Boat Berth Transient Non-Resident (includes electric) Other Jet Ski (weekly) Jet Ski (seasonal) Dinghy Slip Dinghy/Kayak Rack Check fees on their website
Facilities
Electricity
Sewage
Toilets
Showers
FoodCOORDINATES
40.96366 N, -73.03131 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m, 20m+
Depth at MLW
3m+
Manoeuvrability
Good
Channel Marking
Excellent
Port of Entry
No
Overseas Visitor Berths
Yes
Dock Type
Floating
Style Stern To
Yes
Tidal Flow
Negligible
Active Winter
No
Weather Forecast
Fri
5AM - 9AM
06 February 2026
NE 5–8 knots.
−4°C
Cloudy
Fri
9AM - 1PM
06 February 2026
- N 7 knots decreasing to 5 knots.
- −5 to −2°C
Calm sea
UV Index: 1 - Low- Partly cloudy
Fri
1PM - 5PM
06 February 2026
- N 3–5 knots veering NE 3-5 knots.
- −2°C
- Calm sea
- UV Index: 0 - Low
- Cloudy