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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:Variable winds 5 kt or less. A slight chance of showers.   Seas around 2 ft.

      Light Wind
      2ft

    • Sunday

      Sunday:NE wind 6 to 10 kt becoming E in the afternoon. Cloudy, then gradually becoming mostly sunny. Seas around 2 ft.

      E 10kt
      2ft

    • Sunday Night

      Sunday Night:ESE wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas around 2 ft.

      ESE 6kt⇓
      2ft

    • Monday

      Monday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Cloudy through mid morning, then gradual clearing. Seas around 2 ft.

      ⇑S 9kt
      2ft

    • Monday Night

      Monday Night:SSW wind 6 to 9 kt. Partly cloudy. Seas around 2 ft.

      SSW 9kt
      2ft

    • Tuesday

      Tuesday:SW wind 7 to 10 kt becoming S 12 to 17 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.

      ⇑S 17kt
      2-3ft

    • Tuesday Night

      Tuesday Night:SW wind 18 to 21 kt decreasing to 15 to 18 kt after midnight. Winds could gust as high as 27 kt. Partly cloudy. Seas 4 to 5 ft.

      SW 21kt⇓
      4-5ft

    • Wednesday

      Wednesday:SSW wind 12 to 16 kt. Mostly sunny. Seas around 3 ft.

      SSW 16kt
      3ft

    • Wednesday Night

      Wednesday Night:SSW wind 15 to 18 kt becoming W 10 to 13 kt after midnight. Mostly clear. Seas 3 to 4 ft.

      SSW 18kt⇓
      3-4ft


Associated Zone Forecast which includes this point

Last Update: 8:21 pm EDT Jun 27, 2026
Forecast Valid: 8pm EDT Jun 27, 2026-6pm EDT Jul 4, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds 5 kt or less. A slight chance of showers. Seas around 2 ft.
Sunday
NE wind 6 to 10 kt becoming E in the afternoon. Cloudy, then gradually becoming mostly sunny. Seas around 2 ft.
Sunday Night
ESE wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas around 2 ft.
Monday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Cloudy through mid morning, then gradual clearing. Seas around 2 ft.
Monday Night
SSW wind 6 to 9 kt. Partly cloudy. Seas around 2 ft.
Tuesday
SW wind 7 to 10 kt becoming S 12 to 17 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.
Tuesday Night
SW wind 18 to 21 kt decreasing to 15 to 18 kt after midnight. Winds could gust as high as 27 kt. Partly cloudy. Seas 4 to 5 ft.
Wednesday
SSW wind 12 to 16 kt. Mostly sunny. Seas around 3 ft.
Wednesday Night
SSW wind 15 to 18 kt becoming W 10 to 13 kt after midnight. Mostly clear. Seas 3 to 4 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: 8:21 pm EDT Jun 27, 2026
Forecast Valid: 8pm EDT Jun 27, 2026-6pm EDT Jul 4, 2026
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