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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:E wind 6 to 9 kt. Mostly clear. Seas 1 ft or less.

      E 9kt
      < 1ft

    • Sunday

      Sunday:E wind 7 to 12 kt. A chance of showers after 2pm. Seas 1 ft or less.

      E 12kt
      < 1ft

    • Sunday Night

      Sunday Night:ENE wind 5 to 7 kt becoming variable and less than 5 kt in the evening. A chance of showers, mainly before 8pm. Seas 1 ft or less.

      ENE 7kt⇓
      < 1ft

    • Monday

      Monday:WNW wind 6 to 9 kt increasing to 10 to 13 kt in the afternoon. Winds could gust as high as 21 kt. Mostly cloudy through mid morning, then gradual clearing. Seas 1 ft or less.

      ⇑WNW 13kt
      < 1ft

    • Monday Night

      Monday Night:NW wind 13 to 15 kt, with gusts as high as 21 kt. Clear. Seas around 1 ft.

      NW 15kt
      1ft

    • Tuesday

      Tuesday:WNW wind 6 to 10 kt. Sunny. Seas 1 ft or less.

      WNW 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Clear. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SSW 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind 8 to 10 kt. Mostly clear. Seas 1 ft or less.

      SSW 10kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:19 pm EDT Oct 3, 2026
Forecast Valid: 10pm EDT Oct 3, 2026-6pm EDT Oct 10, 2026

View Nearby Observations

Detailed Forecast


Tonight
E wind 6 to 9 kt. Mostly clear. Seas 1 ft or less.
Sunday
E wind 7 to 12 kt. A chance of showers after 2pm. Seas 1 ft or less.
Sunday Night
ENE wind 5 to 7 kt becoming variable and less than 5 kt in the evening. A chance of showers, mainly before 8pm. Seas 1 ft or less.
Monday
WNW wind 6 to 9 kt increasing to 10 to 13 kt in the afternoon. Winds could gust as high as 21 kt. Mostly cloudy through mid morning, then gradual clearing. Seas 1 ft or less.
Monday Night
NW wind 13 to 15 kt, with gusts as high as 21 kt. Clear. Seas around 1 ft.
Tuesday
WNW wind 6 to 10 kt. Sunny. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Clear. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.
Wednesday Night
SSW wind 8 to 10 kt. Mostly clear. 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: 2:19 pm EDT Oct 3, 2026
Forecast Valid: 10pm EDT Oct 3, 2026-6pm EDT Oct 10, 2026
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