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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:N wind 7 to 10 kt increasing to 10 to 13 kt after midnight. A slight chance of showers before 2am.   Seas around 2 ft.

      ⇑N 13kt
      2ft

    • Sunday

      Sunday:NW wind around 14 kt, with gusts as high as 21 kt. Sunny. Seas 3 to 4 ft.

      NW 14kt
      3-4ft

    • Sunday Night

      Sunday Night:W wind 9 to 13 kt becoming WSW after midnight. Mostly clear. Seas 3 to 4 ft.

      WSW 13kt
      3-4ft

    • Monday

      Monday:SSW wind 15 to 18 kt, with gusts as high as 25 kt. Sunny. Seas 4 to 5 ft.

      SSW 18kt
      4-5ft

    • Monday Night

      Monday Night:SSW wind 16 to 19 kt, with gusts as high as 25 kt. Mostly clear. Seas around 5 ft.

      SSW 19kt
      5ft

    • Tuesday

      Tuesday:SSW wind 14 to 19 kt increasing to 20 to 25 kt in the afternoon. Mostly sunny. Seas 4 ft building to 7 ft.

      ⇑SSW 25kt
      Waves Building7ft

    • Tuesday Night

      Tuesday Night:SSW wind 30 to 33 kt, with gusts as high as 39 kt. Mostly cloudy. Seas 8 to 9 ft.

      SSW 33kt
      8-9ft

    • Wednesday

      Wednesday:SSW wind around 28 kt, with gusts as high as 34 kt. A chance of showers.   Seas around 8 ft.

      SSW 28kt
      8ft

    • Wednesday Night

      Wednesday Night:SSW wind 21 to 25 kt. Showers likely.   Seas 6 to 7 ft.

      SSW 25kt
      6-7ft


Associated Zone Forecast which includes this point

Last Update: 3:10 pm EDT May 2, 2026
Forecast Valid: 11pm EDT May 2, 2026-6pm EDT May 9, 2026

View Nearby Observations

Detailed Forecast


Overnight
N wind 7 to 10 kt increasing to 10 to 13 kt after midnight. A slight chance of showers before 2am. Seas around 2 ft.
Sunday
NW wind around 14 kt, with gusts as high as 21 kt. Sunny. Seas 3 to 4 ft.
Sunday Night
W wind 9 to 13 kt becoming WSW after midnight. Mostly clear. Seas 3 to 4 ft.
Monday
SSW wind 15 to 18 kt, with gusts as high as 25 kt. Sunny. Seas 4 to 5 ft.
Monday Night
SSW wind 16 to 19 kt, with gusts as high as 25 kt. Mostly clear. Seas around 5 ft.
Tuesday
SSW wind 14 to 19 kt increasing to 20 to 25 kt in the afternoon. Mostly sunny. Seas 4 ft building to 7 ft.
Tuesday Night
SSW wind 30 to 33 kt, with gusts as high as 39 kt. Mostly cloudy. Seas 8 to 9 ft.
Wednesday
SSW wind around 28 kt, with gusts as high as 34 kt. A chance of showers. Seas around 8 ft.
Wednesday Night
SSW wind 21 to 25 kt. Showers likely. Seas 6 to 7 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: 40.53°N 73.44°W
Last Update: 3:10 pm EDT May 2, 2026
Forecast Valid: 11pm EDT May 2, 2026-6pm EDT May 9, 2026
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