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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:WNW wind 14 to 17 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 29 kt. Mostly sunny. Seas 2 to 3 ft.

      ⇑WNW 20kt
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:NW wind 16 to 19 kt becoming N 13 to 16 kt after midnight. Winds could gust as high as 25 kt. Mostly clear. Seas around 2 ft.

      NW 19kt⇓
      2ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:NNE wind 7 to 11 kt becoming SE in the afternoon. Sunny. Seas around 2 ft.

      NNE 11kt
      2ft

    • Wednesday Night

      Wednesday Night:SSE wind 5 to 8 kt. Mostly clear. Seas 1 to 2 ft.

      SSE 8kt
      1-2ft

    • Thursday

      Thursday:SSE wind around 8 kt. Mostly sunny. Seas 1 to 2 ft.

      SSE 8kt
      1-2ft

    • Thursday Night

      Thursday Night:SE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 2 ft.

      SE 8kt⇓
      2ft

    • Friday

      Friday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.

      ⇑S 9kt
      2-3ft

    • Friday Night

      Friday Night:S wind 9 to 12 kt becoming SW after midnight. Partly cloudy. Seas around 4 ft.

      S 12kt
      4ft

    • Saturday

      Saturday:WSW wind around 8 kt. Mostly sunny. Seas around 4 ft.

      WSW 8kt
      4ft


Associated Zone Forecast which includes this point

Last Update: 6:23 am EDT Apr 7, 2026
Forecast Valid: 10am EDT Apr 7, 2026-6pm EDT Apr 13, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING

Today
WNW wind 14 to 17 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 29 kt. Mostly sunny. Seas 2 to 3 ft.
Tonight
NW wind 16 to 19 kt becoming N 13 to 16 kt after midnight. Winds could gust as high as 25 kt. Mostly clear. Seas around 2 ft.
Wednesday
NNE wind 7 to 11 kt becoming SE in the afternoon. Sunny. Seas around 2 ft.
Wednesday Night
SSE wind 5 to 8 kt. Mostly clear. Seas 1 to 2 ft.
Thursday
SSE wind around 8 kt. Mostly sunny. Seas 1 to 2 ft.
Thursday Night
SE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 2 ft.
Friday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.
Friday Night
S wind 9 to 12 kt becoming SW after midnight. Partly cloudy. Seas around 4 ft.
Saturday
WSW wind around 8 kt. Mostly sunny. Seas around 4 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: 6:23 am EDT Apr 7, 2026
Forecast Valid: 10am EDT Apr 7, 2026-6pm EDT Apr 13, 2026
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