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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Late Afternoon

      Late Afternoon:W wind around 21 kt, with gusts as high as 29 kt. A chance of showers.   Seas around 4 ft.

      W 21kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:WNW wind 21 to 26 kt, with gusts as high as 36 kt. A chance of showers before 7pm.   Seas 4 to 5 ft.

      WNW 26kt
      4-5ft

      Gale Warning
      Gale Warning

    • Monday

      Monday:WNW wind 14 to 18 kt becoming WSW in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 2 to 3 ft.

      WNW 18kt
      2-3ft

    • Monday Night

      Monday Night:W wind 12 to 15 kt, with gusts as high as 22 kt. Partly cloudy. Seas 2 to 3 ft.

      W 15kt
      2-3ft

    • Tuesday

      Tuesday:W wind 10 to 12 kt becoming SSW in the afternoon. Mostly sunny. Seas around 2 ft.

      SW 12kt
      2ft

    • Tuesday Night

      Tuesday Night:SSW wind 14 to 17 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 2 ft building to 4 ft.

      SSW 17kt
      Waves Building4ft

    • Wednesday

      Wednesday:SW wind 9 to 14 kt. Mostly cloudy. Seas 3 to 4 ft.

      SW 14kt
      3-4ft

    • Wednesday Night

      Wednesday Night:SSW wind 5 to 7 kt becoming WSW after midnight. A chance of rain.   Seas 2 to 3 ft.

      SSW 7kt
      2-3ft

    • Thursday

      Thursday:W wind 8 to 11 kt becoming WNW 13 to 16 kt in the afternoon. A chance of rain.   Seas 2 to 3 ft.

      ⇑WNW 16kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 1:42 pm EST Jan 11, 2026
Forecast Valid: 5pm EST Jan 11, 2026-6pm EST Jan 18, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING...

Late Afternoon
W wind around 21 kt, with gusts as high as 29 kt. A chance of showers. Seas around 4 ft.
Tonight
WNW wind 21 to 26 kt, with gusts as high as 36 kt. A chance of showers before 7pm. Seas 4 to 5 ft.
Monday
WNW wind 14 to 18 kt becoming WSW in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 2 to 3 ft.
Monday Night
W wind 12 to 15 kt, with gusts as high as 22 kt. Partly cloudy. Seas 2 to 3 ft.
Tuesday
W wind 10 to 12 kt becoming SSW in the afternoon. Mostly sunny. Seas around 2 ft.
Tuesday Night
SSW wind 14 to 17 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 2 ft building to 4 ft.
Wednesday
SW wind 9 to 14 kt. Mostly cloudy. Seas 3 to 4 ft.
Wednesday Night
SSW wind 5 to 7 kt becoming WSW after midnight. A chance of rain. Seas 2 to 3 ft.
Thursday
W wind 8 to 11 kt becoming WNW 13 to 16 kt in the afternoon. A chance of rain. Seas 2 to 3 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: 40.57°N 73.57°W
Last Update: 1:42 pm EST Jan 11, 2026
Forecast Valid: 5pm EST Jan 11, 2026-6pm EST Jan 18, 2026
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