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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Thursday

      Thursday:Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Patchy fog before 8am.  Seas 1 ft or less.

      ⇑SSW 7kt
      < 1ft

    • Thursday Night

      Thursday Night:S wind around 10 kt becoming WSW after midnight. A chance of showers, mainly before 2am.   Seas around 1 ft.

      S 10kt
      1ft

    • Friday

      Friday:N wind 8 to 10 kt. Partly sunny through mid morning, then becoming sunny. Seas around 1 ft.

      N 10kt
      1ft

    • Friday Night

      Friday Night:NNE wind 10 to 12 kt. Partly cloudy. Seas around 1 ft.

      NNE 12kt
      1ft

    • Saturday

      Saturday:NE wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Seas around 1 ft.

      NE 10kt
      1ft

    • Saturday Night

      Saturday Night:SE wind around 7 kt. A chance of showers after 2am.   Seas around 1 ft.

      SE 7kt
      1ft

    • Sunday

      Sunday:S wind 9 to 11 kt. Showers likely, mainly after 2pm.   Seas around 1 ft.

      S 11kt
      1ft

    • Sunday Night

      Sunday Night:SSW wind 9 to 11 kt becoming NNE after midnight. Showers likely.   Seas 1 to 2 ft.

      NNE 11kt
      1-2ft

    • Monday

      Monday:ENE wind 9 to 13 kt. A chance of showers.   Seas 1 to 2 ft.

      ENE 13kt
      1-2ft


Associated Zone Forecast which includes this point

Last Update: 3:19 pm EDT Sep 16, 2026
Forecast Valid: 1am EDT Sep 17, 2026-6pm EDT Sep 23, 2026

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Detailed Forecast


Thursday
Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Patchy fog before 8am. Seas 1 ft or less.
Thursday Night
S wind around 10 kt becoming WSW after midnight. A chance of showers, mainly before 2am. Seas around 1 ft.
Friday
N wind 8 to 10 kt. Partly sunny through mid morning, then becoming sunny. Seas around 1 ft.
Friday Night
NNE wind 10 to 12 kt. Partly cloudy. Seas around 1 ft.
Saturday
NE wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Seas around 1 ft.
Saturday Night
SE wind around 7 kt. A chance of showers after 2am. Seas around 1 ft.
Sunday
S wind 9 to 11 kt. Showers likely, mainly after 2pm. Seas around 1 ft.
Sunday Night
SSW wind 9 to 11 kt becoming NNE after midnight. Showers likely. Seas 1 to 2 ft.
Monday
ENE wind 9 to 13 kt. A chance of showers. Seas 1 to 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: 40.91°N 73.39°W
Last Update: 3:19 pm EDT Sep 16, 2026
Forecast Valid: 1am EDT Sep 17, 2026-6pm EDT Sep 23, 2026
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