Launch Conditions
Use cautionLaunch with caution — limited daylight.
- Advisories
- None active
- Daylight
- Past sunset (8:27 PM)
- Water level
- 2.39 ft
Live from the National Weather Service, USGS, and NOAA. A guide, not a substitute for official forecasts and your own judgment.
Live Water Conditions on Great South Bay
Updated 1 hr agoSource: USGS station 01306460 — CONNETQUOT BK NR CENTRAL ISLIP NY · 5.1 mi from Great South Bay
Launch Light & Moon — June 24
local timeWaxing Gibbous (75% illuminated). Average fishing outlook by moon phase — focus on dawn and dusk bite windows.
Location
Quick Facts: Great South Bay Boat Ramp
| Location | Town of Islip, New York |
|---|---|
| Waterbody | Great South Bay |
| Access Type | Public |
| Coordinates | 40.641673, -73.256867 |
| Hours | Check on site |
| County | Suffolk County |
Great South Bay Boat Ramp is a boat launch providing access to Great South Bay in Town of Islip, New York at coordinates 40.64167, -73.25687.
Great South Bay Boat Ramp is a boat launch on Great South Bay in Town of Islip, Suffolk County, New York. This page shows live USGS water level and temperature, sunrise, sunset, and moon-phase times for the launch, updated automatically. There are 6 other mapped boat ramps within about 15 miles if conditions here aren't right.
Related: boat ramp near Town of Islip • public launch in Suffolk County • fishing access on Great South Bay • New York boat launch
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Frequently Asked Questions About Great South Bay Boat Ramp
What water does Great South Bay Boat Ramp access?
Great South Bay Boat Ramp provides boat launch access to Great South Bay in Town of Islip, New York.
How do I get to Great South Bay Boat Ramp?
Great South Bay Boat Ramp is located at coordinates 40.641673, -73.256867 in Town of Islip, New York. Use the "Get Directions" buttons on this page to navigate with Google Maps or Apple Maps.
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Alternative Boat Launches Nearby
6 additional boat launches are located within 5.6 mi of Great South Bay Boat Ramp, providing alternative access points for this area's waters.