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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SW wind 8 to 11 kt becoming NW 15 to 20 kt in the evening. Mostly cloudy, then gradual clearing toward daybreak. Seas 1 ft or less.

      ⇑NW 20kt
      < 1ft

    • Saturday

      Saturday:NNW wind 20 to 23 kt becoming N in the afternoon. Winds could gust as high as 30 kt. Mostly sunny. Seas around 1 ft.

      N 23kt
      1ft

    • Saturday Night

      Saturday Night:NNE wind 5 to 10 kt becoming variable and less than 5 kt. Mostly cloudy, then gradually becoming clear. Seas 1 ft or less.

      NNE 10kt⇓
      < 1ft

    • Sunday

      Sunday:NW wind around 6 kt becoming W in the afternoon. Increasing clouds. Seas 1 ft or less.

      NW 6kt
      < 1ft

    • Sunday Night

      Sunday Night:WSW wind 5 to 7 kt. Mostly cloudy. Seas 1 ft or less.

      WSW 7kt
      < 1ft

    • Monday

      Monday:Variable winds 5 kt or less. A chance of showers after 2pm.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. A chance of showers before 8pm.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. A chance of showers.   Seas 1 ft or less.

      Light Wind
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds less than 5 kt becoming N around 6 kt after midnight. A chance of showers.   Seas 1 ft or less.

      ⇑N 6kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:44 pm EDT May 29, 2026
Forecast Valid: 5pm EDT May 29, 2026-6pm EDT Jun 5, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EDT THIS EVENING

Tonight
SW wind 8 to 11 kt becoming NW 15 to 20 kt in the evening. Mostly cloudy, then gradual clearing toward daybreak. Seas 1 ft or less.
Saturday
NNW wind 20 to 23 kt becoming N in the afternoon. Winds could gust as high as 30 kt. Mostly sunny. Seas around 1 ft.
Saturday Night
NNE wind 5 to 10 kt becoming variable and less than 5 kt. Mostly cloudy, then gradually becoming clear. Seas 1 ft or less.
Sunday
NW wind around 6 kt becoming W in the afternoon. Increasing clouds. Seas 1 ft or less.
Sunday Night
WSW wind 5 to 7 kt. Mostly cloudy. Seas 1 ft or less.
Monday
Variable winds 5 kt or less. A chance of showers after 2pm. Seas 1 ft or less.
Monday Night
Variable winds 5 kt or less. A chance of showers before 8pm. Seas 1 ft or less.
Tuesday
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Tuesday Night
Variable winds less than 5 kt becoming N around 6 kt after midnight. A chance of showers. 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: 2:44 pm EDT May 29, 2026
Forecast Valid: 5pm EDT May 29, 2026-6pm EDT Jun 5, 2026
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