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Hazardous Weather Conditions

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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Sunday

      Sunday:ESE wind 7 to 11 kt becoming S in the afternoon. Showers, mainly after 8am. Seas 1 ft or less.

      SE 11kt
      < 1ft

    • Sunday Night

      Sunday Night:S wind 9 to 14 kt becoming N after midnight. Showers, mainly before 2am. Seas 1 ft or less.

      N 14kt
      < 1ft

    • Monday

      Monday:NE wind 12 to 15 kt decreasing to 9 to 12 kt in the afternoon. A chance of showers before 8am, then a slight chance of showers after 2pm. Seas around 1 ft.

      NE 15kt⇓
      1ft

    • Monday Night

      Monday Night:ENE wind 9 to 12 kt increasing to 12 to 15 kt after midnight. A slight chance of showers before 8pm, then a chance of showers after 2am. Seas 1 ft or less.

      ⇑ENE 15kt
      < 1ft

    • Tuesday

      Tuesday:ENE wind 12 to 15 kt. A chance of showers, mainly before 2pm. Seas around 1 ft.

      ENE 15kt
      1ft

    • Tuesday Night

      Tuesday Night:ENE wind 15 to 17 kt, with gusts as high as 24 kt. Mostly cloudy. Seas around 1 ft.

      ENE 17kt
      1ft

    • Wednesday

      Wednesday:ENE wind around 18 kt, with gusts as high as 26 kt. Mostly cloudy. Seas around 1 ft.

      ENE 18kt
      1ft

    • Wednesday Night

      Wednesday Night:ENE wind around 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.

      ENE 20kt
      1ft

    • Thursday

      Thursday:NE wind 17 to 19 kt, with gusts as high as 28 kt. A chance of showers. Seas around 1 ft.

      NE 19kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 2:28 pm EDT Sep 19, 2026
Forecast Valid: 1am EDT Sep 20, 2026-6pm EDT Sep 26, 2026

View Nearby Observations

Detailed Forecast


Sunday
ESE wind 7 to 11 kt becoming S in the afternoon. Showers, mainly after 8am. Seas 1 ft or less.
Sunday Night
S wind 9 to 14 kt becoming N after midnight. Showers, mainly before 2am. Seas 1 ft or less.
Monday
NE wind 12 to 15 kt decreasing to 9 to 12 kt in the afternoon. A chance of showers before 8am, then a slight chance of showers after 2pm. Seas around 1 ft.
Monday Night
ENE wind 9 to 12 kt increasing to 12 to 15 kt after midnight. A slight chance of showers before 8pm, then a chance of showers after 2am. Seas 1 ft or less.
Tuesday
ENE wind 12 to 15 kt. A chance of showers, mainly before 2pm. Seas around 1 ft.
Tuesday Night
ENE wind 15 to 17 kt, with gusts as high as 24 kt. Mostly cloudy. Seas around 1 ft.
Wednesday
ENE wind around 18 kt, with gusts as high as 26 kt. Mostly cloudy. Seas around 1 ft.
Wednesday Night
ENE wind around 20 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 1 ft.
Thursday
NE wind 17 to 19 kt, with gusts as high as 28 kt. A chance of showers. Seas around 1 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: 40.91°N 73.39°W
Last Update: 2:28 pm EDT Sep 19, 2026
Forecast Valid: 1am EDT Sep 20, 2026-6pm EDT Sep 26, 2026
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