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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:W wind 27 to 31 kt, with gusts as high as 41 kt. Partly cloudy. Seas 5 to 6 ft.

      W 31kt
      5-6ft

      Gale Warning
      Gale Warning

    • Tuesday

      Tuesday:W wind 25 to 27 kt, with gusts as high as 41 kt. Partly sunny. Seas 6 ft subsiding to 4 ft.

      W 27kt
      6ftWaves Subsiding

      Gale Warning
      Gale Warning

    • Tuesday Night

      Tuesday Night:W wind 23 to 26 kt decreasing to 20 to 23 kt after midnight. Winds could gust as high as 33 kt. Mostly cloudy. Seas 4 to 5 ft.

      W 26kt⇓
      4-5ft

      Gale Warning
      Gale Warning

    • Wednesday

      Wednesday:WSW wind around 19 kt, with gusts as high as 25 kt. Partly sunny. Seas 3 to 4 ft.

      WSW 19kt
      3-4ft

    • Wednesday Night

      Wednesday Night:WSW wind 18 to 20 kt becoming WNW after midnight. Winds could gust as high as 27 kt. A chance of snow, mainly after 1am.   Seas 3 to 4 ft.

      WSW 20kt
      3-4ft

    • New Year's Day

      New Year's Day:WNW wind 16 to 18 kt. Mostly sunny. Seas 2 to 3 ft.

      WNW 18kt
      2-3ft

    • Thursday Night

      Thursday Night:WNW wind 13 to 16 kt. Partly cloudy. Seas around 2 ft.

      WNW 16kt
      2ft

    • Friday

      Friday:W wind 13 to 15 kt. Partly sunny. Seas around 2 ft.

      W 15kt
      2ft

    • Friday Night

      Friday Night:W wind 10 to 13 kt. Partly cloudy. Seas around 2 ft.

      W 13kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 3:54 pm EST Dec 29, 2025
Forecast Valid: 4pm EST Dec 29, 2025-6pm EST Jan 5, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT THROUGH LATE TUESDAY NIGHT...

Tonight
W wind 27 to 31 kt, with gusts as high as 41 kt. Partly cloudy. Seas 5 to 6 ft.
Tuesday
W wind 25 to 27 kt, with gusts as high as 41 kt. Partly sunny. Seas 6 ft subsiding to 4 ft.
Tuesday Night
W wind 23 to 26 kt decreasing to 20 to 23 kt after midnight. Winds could gust as high as 33 kt. Mostly cloudy. Seas 4 to 5 ft.
Wednesday
WSW wind around 19 kt, with gusts as high as 25 kt. Partly sunny. Seas 3 to 4 ft.
Wednesday Night
WSW wind 18 to 20 kt becoming WNW after midnight. Winds could gust as high as 27 kt. A chance of snow, mainly after 1am. Seas 3 to 4 ft.
New Year's Day
WNW wind 16 to 18 kt. Mostly sunny. Seas 2 to 3 ft.
Thursday Night
WNW wind 13 to 16 kt. Partly cloudy. Seas around 2 ft.
Friday
W wind 13 to 15 kt. Partly sunny. Seas around 2 ft.
Friday Night
W wind 10 to 13 kt. Partly cloudy. Seas around 2 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: 3:54 pm EST Dec 29, 2025
Forecast Valid: 4pm EST Dec 29, 2025-6pm EST Jan 5, 2026
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