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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SE wind around 10 kt. Mostly sunny. Seas around 3 ft.

      SE 10kt
      3ft

    • Tonight

      Tonight:S wind 10 to 12 kt. Mostly cloudy. Seas around 3 ft.

      S 12kt
      3ft

    • Monday

      Monday:SSW wind 14 to 16 kt. Mostly cloudy. Seas 3 to 4 ft.

      SSW 16kt
      3-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:SW wind 12 to 15 kt decreasing to 9 to 12 kt after midnight. Partly cloudy. Seas 3 to 4 ft.

      SW 15kt⇓
      3-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday

      Tuesday:WSW wind 7 to 11 kt becoming S in the afternoon. Mostly sunny. Seas around 3 ft.

      S 11kt
      3ft

    • Tuesday Night

      Tuesday Night:SW wind 9 to 14 kt. Mostly cloudy. Seas around 3 ft.

      SW 14kt
      3ft

    • Wednesday

      Wednesday:SW wind 8 to 12 kt. Mostly sunny. Seas 2 to 3 ft.

      SW 12kt
      2-3ft

    • Wednesday Night

      Wednesday Night:SW wind 8 to 11 kt. A chance of showers.   Seas around 3 ft.

      SW 11kt
      3ft

    • Thursday

      Thursday:WSW wind 8 to 12 kt becoming S in the afternoon. Partly sunny. Seas 2 to 3 ft.

      S 12kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 2:25 pm EDT Apr 12, 2026
Forecast Valid: 2pm EDT Apr 12, 2026-6pm EDT Apr 18, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH

This Afternoon
SE wind around 10 kt. Mostly sunny. Seas around 3 ft.
Tonight
S wind 10 to 12 kt. Mostly cloudy. Seas around 3 ft.
Monday
SSW wind 14 to 16 kt. Mostly cloudy. Seas 3 to 4 ft.
Monday Night
SW wind 12 to 15 kt decreasing to 9 to 12 kt after midnight. Partly cloudy. Seas 3 to 4 ft.
Tuesday
WSW wind 7 to 11 kt becoming S in the afternoon. Mostly sunny. Seas around 3 ft.
Tuesday Night
SW wind 9 to 14 kt. Mostly cloudy. Seas around 3 ft.
Wednesday
SW wind 8 to 12 kt. Mostly sunny. Seas 2 to 3 ft.
Wednesday Night
SW wind 8 to 11 kt. A chance of showers. Seas around 3 ft.
Thursday
WSW wind 8 to 12 kt becoming S in the afternoon. Partly sunny. 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: 2:25 pm EDT Apr 12, 2026
Forecast Valid: 2pm EDT Apr 12, 2026-6pm EDT Apr 18, 2026
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