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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:SW wind around 11 kt. Mostly clear. Seas around 1 ft.

      SW 11kt
      1ft

    • Friday

      Friday:WSW wind 8 to 13 kt becoming NW in the afternoon. Winds could gust as high as 20 kt. Mostly cloudy through mid morning, then clearing. Seas 1 to 2 ft.

      NW 13kt
      1-2ft

    • Friday Night

      Friday Night:NNW wind 10 to 13 kt. Mostly clear. Seas 1 ft or less.

      NNW 13kt
      < 1ft

    • Saturday

      Saturday:N wind 6 to 10 kt. Sunny. Seas 1 ft or less.

      N 10kt
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday

      Monday:WSW wind 5 to 7 kt. Mostly sunny. Seas 1 ft or less.

      WSW 7kt
      < 1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 9:10 pm EDT Oct 29, 2026
Forecast Valid: 12am EDT Oct 30, 2026-6pm EST Nov 5, 2026

View Nearby Observations

Detailed Forecast


Overnight
SW wind around 11 kt. Mostly clear. Seas around 1 ft.
Friday
WSW wind 8 to 13 kt becoming NW in the afternoon. Winds could gust as high as 20 kt. Mostly cloudy through mid morning, then clearing. Seas 1 to 2 ft.
Friday Night
NNW wind 10 to 13 kt. Mostly clear. Seas 1 ft or less.
Saturday
N wind 6 to 10 kt. Sunny. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Monday
WSW wind 5 to 7 kt. Mostly sunny. Seas 1 ft or less.
Monday Night
Variable winds 5 kt or less. Partly 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: 40.91°N 73.39°W
Last Update: 9:10 pm EDT Oct 29, 2026
Forecast Valid: 12am EDT Oct 30, 2026-6pm EST Nov 5, 2026
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