harbor · New York

Coecles Harbor at Shelter Island, New York Anchorage Area

Green light. The water is giving you a comfortable window.

Patchy Smoke · 81° · 8 kt windNDBC 44039 · CO-OPS 8510560 · NWS + KHTO
Today's callGohigh confidence

12 PM–4 PM is the best 4-hour window inside your selected limits.

For Pursuit 235 · 4 hours · limits 15 kt / 2.5 ft

Make it yours, skipper

The flag re-reads the water for your boat and your day.

Your boat

Time on the water

Your comfort line: 15 kt wind · 2.5 ft seas

Pick your day

Seven days, one honest flag each.

Showing hourly detail for today. Each flag uses that day's own forecast.

Peak wind9 kt

Daylight forecast

Peak seas1 ft

9 NWS grid hours

TideTide unavailable

Prediction unavailable

Observed now kt

No recent report

How the day develops

Sustained wind in knots. Gusts may run higher.

Hour by hour

Daylight only. The useful part of your day.

8 kt1 ft seas
8 kt1 ft seas
9 kt1 ft seas
9 kt1 ft seas
9 kt1 ft seas
9 kt1 ft seas
8 kt1 ft seas
7 kt1 ft seas
6 kt1 ft seas
View exact hourly readings
TimeWindSeasTideSky
12 PM8 kt · G 81 ft · NOAA gridTide turningPatchy Smoke
1 PM8 kt · G 81 ft · NOAA gridTide turningPatchy Smoke
2 PM9 kt · G 91 ft · NOAA gridTide turningPatchy Smoke
3 PM9 kt · G 91 ft · NOAA gridTide turningAreas Of Smoke
4 PM9 kt · G 91 ft · NOAA gridTide turningPatchy Smoke
5 PM9 kt · G 91 ft · NOAA gridTide turningPatchy Smoke
6 PM8 kt · G 81 ft · NOAA gridTide turningPatchy Smoke
7 PM7 kt · G 71 ft · NOAA gridTide turningPatchy Smoke
8 PM6 kt · G 61 ft · NOAA gridTide turningPatchy Smoke

How this forecast is built

3 of 5 inputs reporting. Stations, locations, and roles are shown below.

live · forecast

NWS hourly forecast

RoleSupplies the hourly wind, sky, temperature, and precipitation forecast at this destination.

forecast point
Coecles Harbor at Shelter Island, New York Anchorage Area · coecles-harbor-at-shelter-island-new-york-anchorage-area
Coordinates
41.0636° N, 72.3283° W

Hourly wind, weather, temperature, and precipitation forecast resolved from the selected latitude/longitude.

live · wave forecast

NWS coastal marine grid

RoleSupplies forecast wave heights, which Boat or Nope uses before buoy-based estimates when available.

marine grid point
Central Long Island Sound · 44039
Distance
15.4 NM from destination
Coordinates
41.1380° N, 72.6550° W

Wave-height forecast resolved at NDBC 44039. Used before Boat or Nope's observed-buoy fallback when the grid reports usable wave heights.

unavailable · observed

NDBC 44039

RoleChecks recent observed wind and waves and helps fill gaps when the marine grid has no usable wave value.

buoy
Central Long Island Sound · 44039
Distance
15.4 NM from destination
Coordinates
41.1380° N, 72.6550° W

Nearest catalog buoy, 15.4 NM from the selected location. Observed wind and wave reports when this station reports seas.

NDBC: 404 Not Found

unavailable · prediction

CO-OPS 8510560

RoleSupplies predicted tide heights and high/low timing for each forecast day.

tide station
Montauk · 8510560
Distance
16.7 NM from destination
Coordinates
41.0483° N, 71.9594° W

Nearest catalog tide station, 16.7 NM from the selected location. Tide predictions and high/low events in feet relative to MLLW for the available forecast days.

CO-OPS today: 403 Forbidden

live · observed + forecast

AviationWeather KMTP

RoleAdds nearby observed and forecast gust context from METAR and TAF reports.

aviation station
Montauk · KMTP
Distance
18.3 NM from destination
Coordinates
41.0730° N, 71.9235° W

Nearest aviation candidates: KHTO 7.1 NM, KMTP 18.3 NM, KGON 20.3 NM.

Hourly seas: NWS coastal marine-grid wave height is preferred when available. Gaps fall back to the latest NDBC wave observation projected with forecast wind; fallback values are planning estimates, not NOAA wave forecasts.

Verdict: Go, Caution, No-Go, or Incomplete is derived from the boat limits you select for wind and seas.

Updated 7/16/2026, 12:25:28 PM EDT · Planning context, not certified navigation.

Nearby harbors

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