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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:WSW wind around 14 kt becoming WNW after midnight. Cloudy during the early evening, then gradual clearing. Seas around 4 ft.

      WNW 14kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:WNW wind around 14 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. Increasing clouds. Seas 3 to 4 ft.

      WNW 14kt
      3-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:WSW wind 8 to 10 kt becoming W after midnight. A slight chance of showers before 2am.   Seas 2 to 3 ft.

      WSW 10kt
      2-3ft

    • Tuesday

      Tuesday:W wind 12 to 16 kt, with gusts as high as 22 kt. Sunny. Seas around 2 ft.

      W 16kt
      2ft

    • Tuesday Night

      Tuesday Night:N wind 11 to 16 kt. Mostly clear. Seas around 2 ft.

      N 16kt
      2ft

    • Wednesday

      Wednesday:NNE wind 6 to 8 kt becoming SE in the afternoon. Sunny. Seas around 1 ft.

      NNE 8kt
      1ft

    • Wednesday Night

      Wednesday Night:S wind 7 to 9 kt. Mostly clear. Seas 1 to 2 ft.

      S 9kt
      1-2ft

    • Thursday

      Thursday:SSE wind 8 to 11 kt. Mostly sunny. Seas 1 to 2 ft.

      SSE 11kt
      1-2ft

    • Thursday Night

      Thursday Night:S wind 8 to 12 kt. Partly cloudy. Seas around 2 ft.

      S 12kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 6:30 pm EDT Apr 5, 2026
Forecast Valid: 7pm EDT Apr 5, 2026-6pm EDT Apr 12, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON...

Tonight
WSW wind around 14 kt becoming WNW after midnight. Cloudy during the early evening, then gradual clearing. Seas around 4 ft.
Monday
WNW wind around 14 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. Increasing clouds. Seas 3 to 4 ft.
Monday Night
WSW wind 8 to 10 kt becoming W after midnight. A slight chance of showers before 2am. Seas 2 to 3 ft.
Tuesday
W wind 12 to 16 kt, with gusts as high as 22 kt. Sunny. Seas around 2 ft.
Tuesday Night
N wind 11 to 16 kt. Mostly clear. Seas around 2 ft.
Wednesday
NNE wind 6 to 8 kt becoming SE in the afternoon. Sunny. Seas around 1 ft.
Wednesday Night
S wind 7 to 9 kt. Mostly clear. Seas 1 to 2 ft.
Thursday
SSE wind 8 to 11 kt. Mostly sunny. Seas 1 to 2 ft.
Thursday Night
S wind 8 to 12 kt. Partly cloudy. Seas around 2 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 40.57°N 73.57°W
Last Update: 6:30 pm EDT Apr 5, 2026
Forecast Valid: 7pm EDT Apr 5, 2026-6pm EDT Apr 12, 2026
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