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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSW wind 13 to 16 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 1 ft or less.

      ⇑SSW 19kt
      < 1ft

    • Tonight

      Tonight:SSW wind 18 to 23 kt, with gusts as high as 29 kt. Partly cloudy. Seas around 1 ft.

      SSW 23kt
      1ft

    • Wednesday

      Wednesday:S wind around 19 kt, with gusts as high as 25 kt. Showers, mainly after 2pm.   Seas 1 ft or less.

      S 19kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind 14 to 17 kt becoming W 10 to 13 kt after midnight. Rain, mainly before 2am.   Seas 1 ft or less.

      SSW 17kt⇓
      < 1ft

    • Thursday

      Thursday:NNW wind 5 to 9 kt becoming W in the afternoon. A chance of showers.   Seas 1 ft or less.

      NNW 9kt
      < 1ft

    • Thursday Night

      Thursday Night:W wind 7 to 9 kt becoming NW after midnight. Mostly cloudy. Seas 1 ft or less.

      NW 9kt
      < 1ft

    • Friday

      Friday:WNW wind 10 to 12 kt. Sunny. Seas 1 ft or less.

      WNW 12kt
      < 1ft

    • Friday Night

      Friday Night:W wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.

      W 7kt⇓
      < 1ft

    • Saturday

      Saturday:S wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. A chance of showers.   Seas 1 ft or less.

      ⇑S 13kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 7:27 am EDT May 5, 2026
Forecast Valid: 11am EDT May 5, 2026-6pm EDT May 11, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EDT THIS MORNING

Today
SSW wind 13 to 16 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 1 ft or less.
Tonight
SSW wind 18 to 23 kt, with gusts as high as 29 kt. Partly cloudy. Seas around 1 ft.
Wednesday
S wind around 19 kt, with gusts as high as 25 kt. Showers, mainly after 2pm. Seas 1 ft or less.
Wednesday Night
SSW wind 14 to 17 kt becoming W 10 to 13 kt after midnight. Rain, mainly before 2am. Seas 1 ft or less.
Thursday
NNW wind 5 to 9 kt becoming W in the afternoon. A chance of showers. Seas 1 ft or less.
Thursday Night
W wind 7 to 9 kt becoming NW after midnight. Mostly cloudy. Seas 1 ft or less.
Friday
WNW wind 10 to 12 kt. Sunny. Seas 1 ft or less.
Friday Night
W wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.
Saturday
S wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. A chance of showers. Seas 1 ft or less.

*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: 40.91°N 73.39°W
Last Update: 7:27 am EDT May 5, 2026
Forecast Valid: 11am EDT May 5, 2026-6pm EDT May 11, 2026
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