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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NNW wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Increasing clouds. Seas 1 to 2 ft.

      NNW 10kt⇓
      1-2ft

    • Sunday

      Sunday:S wind 5 to 10 kt increasing to 11 to 16 kt in the afternoon. Winds could gust as high as 22 kt. Sunny. Seas 1 to 2 ft.

      ⇑S 16kt
      1-2ft

    • Sunday Night

      Sunday Night:SSW wind 15 to 20 kt. Increasing clouds. Seas 3 to 4 ft.

      SSW 20kt
      3-4ft

    • Monday

      Monday:SW wind around 14 kt, with gusts as high as 20 kt. Partly sunny. Seas around 3 ft.

      SW 14kt
      3ft

    • Monday Night

      Monday Night:SSW wind 11 to 13 kt. A chance of showers after 2am.   Seas 3 to 4 ft.

      SSW 13kt
      3-4ft

    • Tuesday

      Tuesday:SSW wind 12 to 15 kt increasing to 15 to 18 kt in the afternoon. Winds could gust as high as 24 kt. A chance of rain before 8am.   Seas 4 to 5 ft.

      ⇑SSW 18kt
      4-5ft

    • Tuesday Night

      Tuesday Night:SSW wind around 23 kt, with gusts as high as 29 kt. Partly cloudy. Seas 6 ft building to 8 ft.

      SSW 23kt
      Waves Building8ft

    • Wednesday

      Wednesday:SSW wind 17 to 19 kt, with gusts as high as 26 kt. A chance of rain.   Seas 5 to 6 ft.

      SSW 19kt
      5-6ft

    • Wednesday Night

      Wednesday Night:NW wind around 14 kt becoming NNE after midnight. Rain likely.   Seas 4 to 5 ft.

      NW 14kt
      4-5ft


Associated Zone Forecast which includes this point

Last Update: 2:35 pm EDT Mar 28, 2026
Forecast Valid: 9pm EDT Mar 28, 2026-6pm EDT Apr 4, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

Tonight
NNW wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Increasing clouds. Seas 1 to 2 ft.
Sunday
S wind 5 to 10 kt increasing to 11 to 16 kt in the afternoon. Winds could gust as high as 22 kt. Sunny. Seas 1 to 2 ft.
Sunday Night
SSW wind 15 to 20 kt. Increasing clouds. Seas 3 to 4 ft.
Monday
SW wind around 14 kt, with gusts as high as 20 kt. Partly sunny. Seas around 3 ft.
Monday Night
SSW wind 11 to 13 kt. A chance of showers after 2am. Seas 3 to 4 ft.
Tuesday
SSW wind 12 to 15 kt increasing to 15 to 18 kt in the afternoon. Winds could gust as high as 24 kt. A chance of rain before 8am. Seas 4 to 5 ft.
Tuesday Night
SSW wind around 23 kt, with gusts as high as 29 kt. Partly cloudy. Seas 6 ft building to 8 ft.
Wednesday
SSW wind 17 to 19 kt, with gusts as high as 26 kt. A chance of rain. Seas 5 to 6 ft.
Wednesday Night
NW wind around 14 kt becoming NNE after midnight. Rain likely. Seas 4 to 5 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: 2:35 pm EDT Mar 28, 2026
Forecast Valid: 9pm EDT Mar 28, 2026-6pm EDT Apr 4, 2026
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