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New York, NY Local Forecast Office

14NM SSE Islip NY

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:WSW wind 8 to 11 kt becoming W 15 to 20 kt in the afternoon. Winds could gust as high as 26 kt. Areas of fog before noon.  Seas 3 ft building to 6 ft.

      ⇑W 20kt
      Waves Building6ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:WNW wind 13 to 17 kt. Mostly clear. Seas 6 ft subsiding to 4 ft.

      WNW 17kt
      6ftWaves Subsiding

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:NW wind 9 to 12 kt decreasing to 6 to 9 kt in the afternoon. Sunny. Seas 2 to 3 ft.

      NW 12kt⇓
      2-3ft

    • Thursday Night

      Thursday Night:W wind 5 to 8 kt becoming S after midnight. Increasing clouds. Seas around 2 ft.

      S 8kt
      2ft

    • Friday

      Friday:S wind 10 to 13 kt increasing to 15 to 18 kt in the afternoon. A chance of rain after 1pm.   Seas 2 ft building to 4 ft.

      ⇑S 18kt
      Waves Building4ft

    • Friday Night

      Friday Night:SSW wind 16 to 18 kt, with gusts as high as 24 kt. A chance of rain.   Seas 4 to 5 ft.

      SSW 18kt
      4-5ft

    • Saturday

      Saturday:SW wind 11 to 16 kt becoming SE in the afternoon. Rain.   Seas 3 to 4 ft.

      SSE 16kt
      3-4ft

    • Saturday Night

      Saturday Night:S wind around 18 kt becoming SW after midnight. Winds could gust as high as 24 kt. Rain.   Seas 4 ft building to 6 ft.

      S 18kt
      Waves Building6ft

    • Sunday

      Sunday:W wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Winds could gust as high as 30 kt. A chance of rain.   Seas around 6 ft.

      ⇑W 22kt
      6ft


Associated Zone Forecast which includes this point

Last Update: 1:53 am EST Jan 7, 2026
Forecast Valid: 2am EST Jan 7, 2026-6pm EST Jan 13, 2026

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Detailed Forecast

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...

Wednesday
WSW wind 8 to 11 kt becoming W 15 to 20 kt in the afternoon. Winds could gust as high as 26 kt. Areas of fog before noon. Seas 3 ft building to 6 ft.
Wednesday Night
WNW wind 13 to 17 kt. Mostly clear. Seas 6 ft subsiding to 4 ft.
Thursday
NW wind 9 to 12 kt decreasing to 6 to 9 kt in the afternoon. Sunny. Seas 2 to 3 ft.
Thursday Night
W wind 5 to 8 kt becoming S after midnight. Increasing clouds. Seas around 2 ft.
Friday
S wind 10 to 13 kt increasing to 15 to 18 kt in the afternoon. A chance of rain after 1pm. Seas 2 ft building to 4 ft.
Friday Night
SSW wind 16 to 18 kt, with gusts as high as 24 kt. A chance of rain. Seas 4 to 5 ft.
Saturday
SW wind 11 to 16 kt becoming SE in the afternoon. Rain. Seas 3 to 4 ft.
Saturday Night
S wind around 18 kt becoming SW after midnight. Winds could gust as high as 24 kt. Rain. Seas 4 ft building to 6 ft.
Sunday
W wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Winds could gust as high as 30 kt. A chance of rain. Seas around 6 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: 40.5°N 73.15°W
Last Update: 1:53 am EST Jan 7, 2026
Forecast Valid: 2am EST Jan 7, 2026-6pm EST Jan 13, 2026
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