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New York, NY Local Forecast Office

5NM SSE Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NW wind 9 to 12 kt. Partly cloudy. Seas around 1 ft.

      NW 12kt
      1ft

    • Sunday

      Sunday:NW wind around 8 kt becoming W in the afternoon. Sunny. Seas 1 ft or less.

      WNW 8kt
      < 1ft

    • Sunday Night

      Sunday Night:WSW wind around 6 kt. Mostly clear. Seas 1 ft or less.

      WSW 6kt
      < 1ft

    • Monday

      Monday:SSW wind 6 to 9 kt increasing to 11 to 14 kt in the afternoon. A chance of rain after 2pm.   Seas 1 ft or less.

      ⇑SSW 14kt
      < 1ft

    • Monday Night

      Monday Night:SW wind 14 to 19 kt becoming WNW after midnight. A chance of rain before 2am.   Seas around 1 ft.

      WNW 19kt
      1ft

    • Tuesday

      Tuesday:NW wind around 16 kt, with gusts as high as 22 kt. Sunny. Seas around 2 ft.

      NW 16kt
      2ft

    • Tuesday Night

      Tuesday Night:WNW wind 10 to 13 kt. Mostly clear. Seas 1 to 2 ft.

      WNW 13kt
      1-2ft

    • Wednesday

      Wednesday:W wind 8 to 11 kt becoming SW 12 to 15 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.

      ⇑SW 15kt
      1-2ft

    • Wednesday Night

      Wednesday Night:SW wind 17 to 19 kt becoming WNW after midnight. A chance of rain.   Seas around 2 ft.

      WNW 19kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 9:34 pm EDT Nov 1, 2025
Forecast Valid: 10pm EDT Nov 1, 2025-6pm EST Nov 8, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

Tonight
NW wind 9 to 12 kt. Partly cloudy. Seas around 1 ft.
Sunday
NW wind around 8 kt becoming W in the afternoon. Sunny. Seas 1 ft or less.
Sunday Night
WSW wind around 6 kt. Mostly clear. Seas 1 ft or less.
Monday
SSW wind 6 to 9 kt increasing to 11 to 14 kt in the afternoon. A chance of rain after 2pm. Seas 1 ft or less.
Monday Night
SW wind 14 to 19 kt becoming WNW after midnight. A chance of rain before 2am. Seas around 1 ft.
Tuesday
NW wind around 16 kt, with gusts as high as 22 kt. Sunny. Seas around 2 ft.
Tuesday Night
WNW wind 10 to 13 kt. Mostly clear. Seas 1 to 2 ft.
Wednesday
W wind 8 to 11 kt becoming SW 12 to 15 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.
Wednesday Night
SW wind 17 to 19 kt becoming WNW after midnight. A chance of rain. 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: 40.66°N 73.17°W
Last Update: 9:34 pm EDT Nov 1, 2025
Forecast Valid: 10pm EDT Nov 1, 2025-6pm EST Nov 8, 2025
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