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

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SW wind 8 to 13 kt becoming NW after midnight. Mostly cloudy. Seas 1 ft or less.

      SW 13kt
      < 1ft

    • Saturday

      Saturday:N wind 5 to 8 kt becoming ENE in the afternoon. Rain, mainly after 1pm. Seas 1 ft or less.

      ENE 8kt
      < 1ft

    • Saturday Night

      Saturday Night:ENE wind 7 to 12 kt becoming NW after midnight. Rain. Seas 1 ft or less.

      ENE 12kt
      < 1ft

    • Sunday

      Sunday:W wind 7 to 12 kt increasing to 12 to 17 kt in the afternoon. Winds could gust as high as 25 kt. A chance of rain, mainly before 1pm. Seas 1 ft or less.

      ⇑W 17kt
      < 1ft

    • Sunday Night

      Sunday Night:WNW wind 22 to 25 kt, with gusts as high as 33 kt. Partly cloudy. Seas around 1 ft.

      WNW 25kt
      1ft

    • Monday

      Monday:WNW wind 16 to 19 kt decreasing to 12 to 15 kt in the afternoon. Sunny. Seas around 1 ft.

      WNW 19kt⇓
      1ft

    • Monday Night

      Monday Night:WSW wind around 13 kt. Partly cloudy. Seas 1 ft or less.

      WSW 13kt
      < 1ft

    • Tuesday

      Tuesday:WSW wind around 12 kt. Sunny. Seas 1 ft or less.

      WSW 12kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind 12 to 14 kt. Mostly cloudy. Seas 1 ft or less.

      SSW 14kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 6:02 pm EST Jan 9, 2026
Forecast Valid: 10pm EST Jan 9, 2026-6pm EST Jan 16, 2026

View Nearby Observations

Detailed Forecast

...GALE WATCH IN EFFECT FROM SUNDAY EVENING THROUGH LATE SUNDAY

Tonight
SW wind 8 to 13 kt becoming NW after midnight. Mostly cloudy. Seas 1 ft or less.
Saturday
N wind 5 to 8 kt becoming ENE in the afternoon. Rain, mainly after 1pm. Seas 1 ft or less.
Saturday Night
ENE wind 7 to 12 kt becoming NW after midnight. Rain. Seas 1 ft or less.
Sunday
W wind 7 to 12 kt increasing to 12 to 17 kt in the afternoon. Winds could gust as high as 25 kt. A chance of rain, mainly before 1pm. Seas 1 ft or less.
Sunday Night
WNW wind 22 to 25 kt, with gusts as high as 33 kt. Partly cloudy. Seas around 1 ft.
Monday
WNW wind 16 to 19 kt decreasing to 12 to 15 kt in the afternoon. Sunny. Seas around 1 ft.
Monday Night
WSW wind around 13 kt. Partly cloudy. Seas 1 ft or less.
Tuesday
WSW wind around 12 kt. Sunny. Seas 1 ft or less.
Tuesday Night
SSW wind 12 to 14 kt. Mostly cloudy. 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: 6:02 pm EST Jan 9, 2026
Forecast Valid: 10pm EST Jan 9, 2026-6pm EST Jan 16, 2026
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