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New York, NY Local Forecast Office

11NM ESE Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SW wind 19 to 22 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 2 ft.

      SW 22kt
      2ft

    • Wednesday

      Wednesday:SSW wind 21 to 24 kt increasing to 24 to 27 kt in the afternoon. Winds could gust as high as 37 kt. Rain likely after 1pm.   Seas around 2 ft.

      ⇑SSW 27kt
      2ft

    • Wednesday Night

      Wednesday Night:WSW wind 23 to 27 kt, with gusts as high as 34 kt. A chance of rain before 1am.   Seas around 2 ft.

      WSW 27kt
      2ft

    • Thursday

      Thursday:W wind 23 to 25 kt, with gusts as high as 33 kt. Mostly sunny. Seas around 2 ft.

      W 25kt
      2ft

    • Thursday Night

      Thursday Night:W wind 25 to 28 kt decreasing to 22 to 25 kt after midnight. Winds could gust as high as 35 kt. Partly cloudy. Seas around 2 ft.

      W 28kt⇓
      2ft

    • Friday

      Friday:W wind 18 to 21 kt, with gusts as high as 28 kt. Mostly sunny. Seas around 2 ft.

      W 21kt
      2ft

    • Friday Night

      Friday Night:W wind 12 to 16 kt, with gusts as high as 22 kt. Mostly cloudy. Seas 1 to 2 ft.

      W 16kt
      1-2ft

    • Saturday

      Saturday:W wind 13 to 16 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 26 kt. Mostly cloudy. Seas 1 to 2 ft.

      ⇑W 19kt
      1-2ft

    • Saturday Night

      Saturday Night:W wind 16 to 19 kt, with gusts as high as 26 kt. A chance of snow.   Seas around 2 ft.

      W 19kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 5:42 pm EST Dec 9, 2025
Forecast Valid: 8pm EST Dec 9, 2025-6pm EST Dec 16, 2025

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Tonight
SW wind 19 to 22 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 2 ft.
Wednesday
SSW wind 21 to 24 kt increasing to 24 to 27 kt in the afternoon. Winds could gust as high as 37 kt. Rain likely after 1pm. Seas around 2 ft.
Wednesday Night
WSW wind 23 to 27 kt, with gusts as high as 34 kt. A chance of rain before 1am. Seas around 2 ft.
Thursday
W wind 23 to 25 kt, with gusts as high as 33 kt. Mostly sunny. Seas around 2 ft.
Thursday Night
W wind 25 to 28 kt decreasing to 22 to 25 kt after midnight. Winds could gust as high as 35 kt. Partly cloudy. Seas around 2 ft.
Friday
W wind 18 to 21 kt, with gusts as high as 28 kt. Mostly sunny. Seas around 2 ft.
Friday Night
W wind 12 to 16 kt, with gusts as high as 22 kt. Mostly cloudy. Seas 1 to 2 ft.
Saturday
W wind 13 to 16 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 26 kt. Mostly cloudy. Seas 1 to 2 ft.
Saturday Night
W wind 16 to 19 kt, with gusts as high as 26 kt. A chance of snow. 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: 40.7°N 72.99°W
Last Update: 5:42 pm EST Dec 9, 2025
Forecast Valid: 8pm EST Dec 9, 2025-6pm EST Dec 16, 2025
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