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New York, NY Local Forecast Office

11NM ESE Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds less than 5 kt becoming WSW 5 to 10 kt in the afternoon. Partly sunny. Seas 1 ft or less.

      ⇑WSW 10kt
      < 1ft

    • Tonight

      Tonight:W wind 12 to 15 kt becoming NW 17 to 20 kt after midnight. Partly cloudy. Seas around 1 ft.

      ⇑NW 20kt
      1ft

    • Monday

      Monday:N wind 20 to 23 kt decreasing to 17 to 20 kt in the afternoon. Winds could gust as high as 29 kt. Mostly sunny. Seas around 1 ft.

      N 23kt⇓
      1ft

    • Monday Night

      Monday Night:N wind 11 to 16 kt decreasing to 6 to 11 kt after midnight. Partly cloudy. Seas 1 ft or less.

      N 16kt⇓
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming SSW 12 to 17 kt in the morning. Increasing clouds. Seas 1 ft or less.

      ⇑SSW 17kt
      < 1ft

    • Tuesday Night

      Tuesday Night:WSW wind 21 to 24 kt decreasing to 18 to 21 kt after midnight. Mostly cloudy. Seas around 1 ft.

      WSW 24kt⇓
      1ft

    • Wednesday

      Wednesday:SSW wind 16 to 19 kt increasing to 22 to 25 kt in the afternoon. A chance of rain after 1pm.   Seas around 1 ft.

      ⇑SSW 25kt
      1ft

    • Wednesday Night

      Wednesday Night:SW wind 22 to 25 kt. A chance of rain.   Seas around 1 ft.

      SW 25kt
      1ft

    • Thursday

      Thursday:WNW wind 17 to 20 kt. Partly sunny. Seas around 1 ft.

      WNW 20kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 7:42 am EST Dec 7, 2025
Forecast Valid: 9am EST Dec 7, 2025-6pm EST Dec 13, 2025

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH

Today
Variable winds less than 5 kt becoming WSW 5 to 10 kt in the afternoon. Partly sunny. Seas 1 ft or less.
Tonight
W wind 12 to 15 kt becoming NW 17 to 20 kt after midnight. Partly cloudy. Seas around 1 ft.
Monday
N wind 20 to 23 kt decreasing to 17 to 20 kt in the afternoon. Winds could gust as high as 29 kt. Mostly sunny. Seas around 1 ft.
Monday Night
N wind 11 to 16 kt decreasing to 6 to 11 kt after midnight. Partly cloudy. Seas 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SSW 12 to 17 kt in the morning. Increasing clouds. Seas 1 ft or less.
Tuesday Night
WSW wind 21 to 24 kt decreasing to 18 to 21 kt after midnight. Mostly cloudy. Seas around 1 ft.
Wednesday
SSW wind 16 to 19 kt increasing to 22 to 25 kt in the afternoon. A chance of rain after 1pm. Seas around 1 ft.
Wednesday Night
SW wind 22 to 25 kt. A chance of rain. Seas around 1 ft.
Thursday
WNW wind 17 to 20 kt. Partly sunny. Seas around 1 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: 40.7°N 72.99°W
Last Update: 7:42 am EST Dec 7, 2025
Forecast Valid: 9am EST Dec 7, 2025-6pm EST Dec 13, 2025
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