National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:WNW wind around 18 kt, with gusts as high as 25 kt. Widespread freezing spray. Mostly sunny. Seas around 3 ft.

      WNW 18kt
      3ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:NW wind 12 to 17 kt, with gusts as high as 23 kt. Partly cloudy. Seas 2 to 3 ft.

      NW 17kt
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday

      Saturday:N wind 9 to 11 kt. Partly sunny. Seas 1 to 2 ft.

      N 11kt
      1-2ft

    • Saturday Night

      Saturday Night:N wind 14 to 19 kt increasing to 20 to 25 kt after midnight. Winds could gust as high as 34 kt. A chance of snow after 1am. Seas 2 ft building to 4 ft.

      ⇑N 25kt
      Waves Building4ft

    • Sunday

      Sunday:N wind 25 to 29 kt, with gusts as high as 39 kt. A chance of snow. Seas 5 to 6 ft.

      N 29kt
      5-6ft

    • Sunday Night

      Sunday Night:NNW wind 21 to 25 kt, with gusts as high as 33 kt. Mostly cloudy. Seas around 6 ft.

      NNW 25kt
      6ft

    • Monday

      Monday:NW wind 17 to 19 kt. Mostly sunny. Seas 5 to 6 ft.

      NW 19kt
      5-6ft

    • Monday Night

      Monday Night:WNW wind 14 to 16 kt. Partly cloudy. Seas 4 to 5 ft.

      WNW 16kt
      4-5ft

    • Tuesday

      Tuesday:WNW wind 12 to 14 kt. Mostly sunny. Seas 3 to 4 ft.

      WNW 14kt
      3-4ft


Associated Zone Forecast which includes this point

Last Update: 1:47 am EST Jan 30, 2026
Forecast Valid: 12pm EST Jan 30, 2026-6pm EST Feb 5, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

This Afternoon
WNW wind around 18 kt, with gusts as high as 25 kt. Widespread freezing spray. Mostly sunny. Seas around 3 ft.
Tonight
NW wind 12 to 17 kt, with gusts as high as 23 kt. Partly cloudy. Seas 2 to 3 ft.
Saturday
N wind 9 to 11 kt. Partly sunny. Seas 1 to 2 ft.
Saturday Night
N wind 14 to 19 kt increasing to 20 to 25 kt after midnight. Winds could gust as high as 34 kt. A chance of snow after 1am. Seas 2 ft building to 4 ft.
Sunday
N wind 25 to 29 kt, with gusts as high as 39 kt. A chance of snow. Seas 5 to 6 ft.
Sunday Night
NNW wind 21 to 25 kt, with gusts as high as 33 kt. Mostly cloudy. Seas around 6 ft.
Monday
NW wind 17 to 19 kt. Mostly sunny. Seas 5 to 6 ft.
Monday Night
WNW wind 14 to 16 kt. Partly cloudy. Seas 4 to 5 ft.
Tuesday
WNW wind 12 to 14 kt. Mostly sunny. Seas 3 to 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: 40.53°N 73.44°W
Last Update: 1:47 am EST Jan 30, 2026
Forecast Valid: 12pm EST Jan 30, 2026-6pm EST Feb 5, 2026
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