Mount Sinai Harbor
Small Craft Advisory until 6 PM.
Right now
updated 2:05 AM
54°F · sets 6:10 PM
gusts 13 kt
High tide 3:38 AM
5.59 ft MLLW · 1.4 ft above prediction
Latest observations plus the current-hour NWS sky forecast. The call itself runs on the hourly forecast; nearby NDBC BRHC3 observations do not replace it.
Small Craft Advisory issued October 15 at 2:29PM EDT until October 16 at 6:00PM EDT by NWS Upton NY In effect through 10/16/2026, 6:00:00 PM EDT.
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Available forecast · 11 kt peak wind · 2 ft peak seas · Wave character unavailable
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Right now. Caution. Wind is the limiting factor. Southeast 6 knots gusting 13, 9 knots under your 15 knot limit. cloudy, seas 1 feet, comfortably under the limit, tide rising, high tide at 3:38 AM.
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Nearby boating conditions
Local source coverage
Marine forecast and boating conditions for Mount Sinai Harbor
A protected north-shore Long Island harbor entered through a narrow, shoal-fringed channel with extensive moorings and quiet water inside.
This inlet harbor in New York uses Central Long Island Sound (44039) for marine observations, Bridgeport (8467150) for tide predictions, and Islip/MacArthur (KISP) for nearby aviation weather context.
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