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New York, NY Local Forecast Office

13NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:WSW wind 9 to 13 kt. Mostly clear. Seas 1 ft or less.

      WSW 13kt
      < 1ft

    • Thursday

      Thursday:WSW wind 13 to 18 kt becoming WNW 18 to 23 kt in the afternoon. Winds could gust as high as 30 kt. Increasing clouds. Seas around 1 ft.

      ⇑WNW 23kt
      1ft

    • Thursday Night

      Thursday Night:NW wind 18 to 23 kt becoming N 8 to 11 kt. Winds could gust as high as 33 kt. Mostly clear. Seas 1 to 2 ft.

      NW 23kt⇓
      1-2ft

    • Friday

      Friday:NNE wind around 6 kt becoming S in the afternoon. Increasing clouds. Seas 1 ft or less.

      SSE 6kt
      < 1ft

    • Friday Night

      Friday Night:S wind around 6 kt becoming NNW after midnight. A chance of light rain after 4am.   Seas 1 ft or less.

      S 6kt
      < 1ft

    • Saturday

      Saturday:N wind around 6 kt becoming W in the afternoon. A chance of light rain before 7am, then a chance of rain between 7am and 1pm.   Seas 1 ft or less.

      N 6kt
      < 1ft

    • Saturday Night

      Saturday Night:W wind around 8 kt. Partly cloudy. Seas 1 ft or less.

      W 8kt
      < 1ft

    • Sunday

      Sunday:NW wind 7 to 9 kt. Mostly sunny. Seas 1 ft or less.

      NW 9kt
      < 1ft

    • Sunday Night

      Sunday Night:NNW wind 11 to 15 kt. Mostly cloudy. Seas 1 ft or less.

      NNW 15kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 4:09 pm EST Dec 3, 2025
Forecast Valid: 10pm EST Dec 3, 2025-6pm EST Dec 10, 2025

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Detailed Forecast

...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE

Tonight
WSW wind 9 to 13 kt. Mostly clear. Seas 1 ft or less.
Thursday
WSW wind 13 to 18 kt becoming WNW 18 to 23 kt in the afternoon. Winds could gust as high as 30 kt. Increasing clouds. Seas around 1 ft.
Thursday Night
NW wind 18 to 23 kt becoming N 8 to 11 kt. Winds could gust as high as 33 kt. Mostly clear. Seas 1 to 2 ft.
Friday
NNE wind around 6 kt becoming S in the afternoon. Increasing clouds. Seas 1 ft or less.
Friday Night
S wind around 6 kt becoming NNW after midnight. A chance of light rain after 4am. Seas 1 ft or less.
Saturday
N wind around 6 kt becoming W in the afternoon. A chance of light rain before 7am, then a chance of rain between 7am and 1pm. Seas 1 ft or less.
Saturday Night
W wind around 8 kt. Partly cloudy. Seas 1 ft or less.
Sunday
NW wind 7 to 9 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
NNW wind 11 to 15 kt. Mostly cloudy. Seas 1 ft or less.

*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: 40.89°N 73.42°W
Last Update: 4:09 pm EST Dec 3, 2025
Forecast Valid: 10pm EST Dec 3, 2025-6pm EST Dec 10, 2025
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