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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:N wind 13 to 16 kt becoming E 9 to 12 kt in the morning. Sunny. Seas 2 to 3 ft.

      N 16kt⇓
      2-3ft

    • Tonight

      Tonight:ESE wind 5 to 9 kt. Mostly clear. Seas around 2 ft.

      ESE 9kt
      2ft

    • Thursday

      Thursday:ESE wind around 9 kt. Mostly sunny. Seas around 2 ft.

      ESE 9kt
      2ft

    • Thursday Night

      Thursday Night:SSE wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 2 ft.

      SSE 9kt⇓
      2ft

    • Friday

      Friday:Variable winds less than 5 kt becoming S 7 to 12 kt in the morning. Sunny. Seas 3 to 4 ft.

      ⇑S 12kt
      3-4ft

    • Friday Night

      Friday Night:SSW wind 12 to 16 kt becoming WSW after midnight. Mostly cloudy. Seas around 5 ft.

      SSW 16kt
      5ft

    • Saturday

      Saturday:NNW wind 6 to 10 kt. Sunny. Seas around 4 ft.

      NNW 10kt
      4ft

    • Saturday Night

      Saturday Night:NW wind around 8 kt becoming NNE after midnight. Clear. Seas around 4 ft.

      NW 8kt
      4ft

    • Sunday

      Sunday:NE wind 6 to 9 kt becoming SSE in the afternoon. Sunny. Seas around 3 ft.

      SSE 9kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 3:28 am EDT Apr 8, 2026
Forecast Valid: 5am EDT Apr 8, 2026-6pm EDT Apr 14, 2026

View Nearby Observations

Detailed Forecast


Today
N wind 13 to 16 kt becoming E 9 to 12 kt in the morning. Sunny. Seas 2 to 3 ft.
Tonight
ESE wind 5 to 9 kt. Mostly clear. Seas around 2 ft.
Thursday
ESE wind around 9 kt. Mostly sunny. Seas around 2 ft.
Thursday Night
SSE wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 2 ft.
Friday
Variable winds less than 5 kt becoming S 7 to 12 kt in the morning. Sunny. Seas 3 to 4 ft.
Friday Night
SSW wind 12 to 16 kt becoming WSW after midnight. Mostly cloudy. Seas around 5 ft.
Saturday
NNW wind 6 to 10 kt. Sunny. Seas around 4 ft.
Saturday Night
NW wind around 8 kt becoming NNE after midnight. Clear. Seas around 4 ft.
Sunday
NE wind 6 to 9 kt becoming SSE in the afternoon. Sunny. 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: 40.53°N 73.44°W
Last Update: 3:28 am EDT Apr 8, 2026
Forecast Valid: 5am EDT Apr 8, 2026-6pm EDT Apr 14, 2026
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