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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:N wind around 8 kt. Clear. Seas around 3 ft.

      N 8kt
      3ft

    • Sunday

      Sunday:NE wind 5 to 10 kt becoming SSE in the afternoon. Increasing clouds. Seas around 3 ft.

      SSE 10kt
      3ft

    • Sunday Night

      Sunday Night:S wind 12 to 14 kt. Mostly cloudy. Seas around 3 ft.

      S 14kt
      3ft

    • Monday

      Monday:SSW wind 13 to 17 kt, with gusts as high as 23 kt. Partly sunny. Seas around 4 ft.

      SSW 17kt
      4ft

    • Monday Night

      Monday Night:SW wind 14 to 17 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 23 kt. A slight chance of showers before 2am. Seas 4 to 5 ft.

      SW 17kt⇓
      4-5ft

    • Tuesday

      Tuesday:WSW wind 7 to 11 kt becoming S in the afternoon. Partly sunny. Seas around 3 ft.

      S 11kt
      3ft

    • Tuesday Night

      Tuesday Night:SW wind 9 to 13 kt. Mostly cloudy. Seas 2 to 3 ft.

      SW 13kt
      2-3ft

    • Wednesday

      Wednesday:WSW wind 8 to 12 kt becoming SSW in the afternoon. Mostly sunny. Seas around 2 ft.

      SSW 12kt
      2ft

    • Wednesday Night

      Wednesday Night:SSW wind 10 to 13 kt. Mostly cloudy. Seas around 3 ft.

      SSW 13kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 6:36 pm EDT Apr 11, 2026
Forecast Valid: 11pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026

View Nearby Observations

Detailed Forecast


Overnight
N wind around 8 kt. Clear. Seas around 3 ft.
Sunday
NE wind 5 to 10 kt becoming SSE in the afternoon. Increasing clouds. Seas around 3 ft.
Sunday Night
S wind 12 to 14 kt. Mostly cloudy. Seas around 3 ft.
Monday
SSW wind 13 to 17 kt, with gusts as high as 23 kt. Partly sunny. Seas around 4 ft.
Monday Night
SW wind 14 to 17 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 23 kt. A slight chance of showers before 2am. Seas 4 to 5 ft.
Tuesday
WSW wind 7 to 11 kt becoming S in the afternoon. Partly sunny. Seas around 3 ft.
Tuesday Night
SW wind 9 to 13 kt. Mostly cloudy. Seas 2 to 3 ft.
Wednesday
WSW wind 8 to 12 kt becoming SSW in the afternoon. Mostly sunny. Seas around 2 ft.
Wednesday Night
SSW wind 10 to 13 kt. Mostly cloudy. Seas around 3 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: 40.57°N 73.57°W
Last Update: 6:36 pm EDT Apr 11, 2026
Forecast Valid: 11pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026
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