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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:ENE wind 17 to 19 kt, with gusts as high as 26 kt. Partly cloudy. Seas around 2 ft.

      ENE 19kt
      2ft

    • Thursday

      Thursday:NE wind 15 to 18 kt, with gusts as high as 26 kt. Mostly sunny. Seas around 2 ft.

      NE 18kt
      2ft

    • Thursday Night

      Thursday Night:NNE wind around 19 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 2 ft.

      NNE 19kt
      2ft

    • Friday

      Friday:NNE wind around 20 kt, with gusts as high as 30 kt. A chance of showers, mainly after 2pm.   Seas around 2 ft.

      NNE 20kt
      2ft

    • Friday Night

      Friday Night:N wind around 21 kt, with gusts as high as 32 kt. Showers likely, mainly after 2am.   Seas around 3 ft.

      N 21kt
      3ft

    • Saturday

      Saturday:N wind 18 to 20 kt, with gusts as high as 30 kt. Showers likely, mainly after 2pm.   Seas 2 to 3 ft.

      N 20kt
      2-3ft

    • Saturday Night

      Saturday Night:NNW wind around 19 kt, with gusts as high as 30 kt. Showers likely.   Seas 2 to 3 ft.

      NNW 19kt
      2-3ft

    • Sunday

      Sunday:N wind 15 to 17 kt, with gusts as high as 26 kt. Showers likely.   Seas around 2 ft.

      N 17kt
      2ft

    • Sunday Night

      Sunday Night:N wind 13 to 15 kt, with gusts as high as 25 kt. A chance of showers.   Seas 2 to 3 ft.

      N 15kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 5:46 pm EDT Sep 23, 2026
Forecast Valid: 6pm EDT Sep 23, 2026-6pm EDT Sep 30, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

Tonight
ENE wind 17 to 19 kt, with gusts as high as 26 kt. Partly cloudy. Seas around 2 ft.
Thursday
NE wind 15 to 18 kt, with gusts as high as 26 kt. Mostly sunny. Seas around 2 ft.
Thursday Night
NNE wind around 19 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 2 ft.
Friday
NNE wind around 20 kt, with gusts as high as 30 kt. A chance of showers, mainly after 2pm. Seas around 2 ft.
Friday Night
N wind around 21 kt, with gusts as high as 32 kt. Showers likely, mainly after 2am. Seas around 3 ft.
Saturday
N wind 18 to 20 kt, with gusts as high as 30 kt. Showers likely, mainly after 2pm. Seas 2 to 3 ft.
Saturday Night
NNW wind around 19 kt, with gusts as high as 30 kt. Showers likely. Seas 2 to 3 ft.
Sunday
N wind 15 to 17 kt, with gusts as high as 26 kt. Showers likely. Seas around 2 ft.
Sunday Night
N wind 13 to 15 kt, with gusts as high as 25 kt. A chance of showers. Seas 2 to 3 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: 40.91°N 73.39°W
Last Update: 5:46 pm EDT Sep 23, 2026
Forecast Valid: 6pm EDT Sep 23, 2026-6pm EDT Sep 30, 2026
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