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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Thursday

      Thursday:Variable winds less than 5 kt becoming SSE 5 to 8 kt in the morning. Mostly sunny. Seas around 2 ft.

      ⇑SSE 8kt
      2ft

    • Thursday Night

      Thursday Night:SSE wind around 6 kt becoming SW after midnight. Mostly cloudy. Seas around 2 ft.

      SSE 6kt
      2ft

    • Friday

      Friday:Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Mostly sunny. Seas around 2 ft.

      ⇑S 10kt
      2ft

    • Friday Night

      Friday Night:S wind around 15 kt. Rain likely, mainly after midnight.   Seas 3 to 4 ft.

      S 15kt
      3-4ft

    • Saturday

      Saturday:SSW wind around 12 kt becoming WSW in the afternoon. A chance of rain, mainly before 8am.   Seas around 4 ft.

      SSW 12kt
      4ft

    • Saturday Night

      Saturday Night:SW wind around 12 kt. Mostly cloudy. Seas 3 to 4 ft.

      SW 12kt
      3-4ft

    • Sunday

      Sunday:SW wind 12 to 14 kt. Mostly cloudy. Seas 3 to 4 ft.

      SW 14kt
      3-4ft

    • Sunday Night

      Sunday Night:W wind around 16 kt becoming NW after midnight. A chance of rain.   Seas 3 to 4 ft.

      W 16kt
      3-4ft

    • Monday

      Monday:N wind 14 to 17 kt. Partly sunny. Seas around 3 ft.

      N 17kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 5:35 pm EDT Mar 18, 2026
Forecast Valid: 1am EDT Mar 19, 2026-6pm EDT Mar 25, 2026

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Detailed Forecast


Thursday
Variable winds less than 5 kt becoming SSE 5 to 8 kt in the morning. Mostly sunny. Seas around 2 ft.
Thursday Night
SSE wind around 6 kt becoming SW after midnight. Mostly cloudy. Seas around 2 ft.
Friday
Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Mostly sunny. Seas around 2 ft.
Friday Night
S wind around 15 kt. Rain likely, mainly after midnight. Seas 3 to 4 ft.
Saturday
SSW wind around 12 kt becoming WSW in the afternoon. A chance of rain, mainly before 8am. Seas around 4 ft.
Saturday Night
SW wind around 12 kt. Mostly cloudy. Seas 3 to 4 ft.
Sunday
SW wind 12 to 14 kt. Mostly cloudy. Seas 3 to 4 ft.
Sunday Night
W wind around 16 kt becoming NW after midnight. A chance of rain. Seas 3 to 4 ft.
Monday
N wind 14 to 17 kt. Partly sunny. Seas around 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: 5:35 pm EDT Mar 18, 2026
Forecast Valid: 1am EDT Mar 19, 2026-6pm EDT Mar 25, 2026
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