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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Late Afternoon

      Late Afternoon:SW wind around 8 kt. Showers and possibly a thunderstorm.   Seas around 4 ft.

      SW 8kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:NE wind 5 to 8 kt becoming ENE 13 to 18 kt. Winds could gust as high as 24 kt. Showers and possibly a thunderstorm.   Seas 3 to 4 ft.

      ⇑ENE 18kt
      3-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:ENE wind 16 to 19 kt. A chance of showers, mainly before 11am.   Seas 3 to 4 ft.

      ENE 19kt
      3-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday Night

      Thursday Night:E wind 12 to 17 kt. A slight chance of showers after 8pm.   Seas 3 to 4 ft.

      E 17kt
      3-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:E wind 5 to 9 kt becoming S in the afternoon. Mostly cloudy. Seas 2 to 3 ft.

      S 9kt
      2-3ft

    • Friday Night

      Friday Night:SSW wind 15 to 18 kt decreasing to 11 to 14 kt after midnight. Mostly cloudy. Seas 3 to 4 ft.

      SSW 18kt⇓
      3-4ft

    • Saturday

      Saturday:SW wind 7 to 12 kt becoming SSE in the afternoon. Mostly sunny. Seas around 3 ft.

      SSE 12kt
      3ft

    • Saturday Night

      Saturday Night:SSE wind around 19 kt. A chance of showers.   Seas around 4 ft.

      SSE 19kt
      4ft

    • Sunday

      Sunday:SSW wind 20 to 22 kt. Showers.   Seas 5 to 6 ft.

      SSW 22kt
      5-6ft


Associated Zone Forecast which includes this point

Last Update: 2:31 pm EDT Apr 1, 2026
Forecast Valid: 4pm EDT Apr 1, 2026-6pm EDT Apr 8, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

Late Afternoon
SW wind around 8 kt. Showers and possibly a thunderstorm. Seas around 4 ft.
Tonight
NE wind 5 to 8 kt becoming ENE 13 to 18 kt. Winds could gust as high as 24 kt. Showers and possibly a thunderstorm. Seas 3 to 4 ft.
Thursday
ENE wind 16 to 19 kt. A chance of showers, mainly before 11am. Seas 3 to 4 ft.
Thursday Night
E wind 12 to 17 kt. A slight chance of showers after 8pm. Seas 3 to 4 ft.
Friday
E wind 5 to 9 kt becoming S in the afternoon. Mostly cloudy. Seas 2 to 3 ft.
Friday Night
SSW wind 15 to 18 kt decreasing to 11 to 14 kt after midnight. Mostly cloudy. Seas 3 to 4 ft.
Saturday
SW wind 7 to 12 kt becoming SSE in the afternoon. Mostly sunny. Seas around 3 ft.
Saturday Night
SSE wind around 19 kt. A chance of showers. Seas around 4 ft.
Sunday
SSW wind 20 to 22 kt. Showers. Seas 5 to 6 ft.

Winds and seas may be higher in and near tstms.

*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: 40.57°N 73.57°W
Last Update: 2:31 pm EDT Apr 1, 2026
Forecast Valid: 4pm EDT Apr 1, 2026-6pm EDT Apr 8, 2026
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