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Hazardous Weather Conditions

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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:S wind around 16 kt. Isolated showers after 5pm. Seas around 3 ft.

      S 16kt
      3ft

    • Tonight

      Tonight:SSW wind 16 to 19 kt becoming NW 10 to 13 kt after midnight. Showers likely, mainly before 10pm. Seas 3 to 4 ft.

      SSW 19kt⇓
      3-4ft

    • Saturday

      Saturday:N wind 8 to 13 kt becoming E in the afternoon. Rain, mainly after 1pm. Seas 2 to 3 ft.

      E 13kt
      2-3ft

    • Saturday Night

      Saturday Night:E wind 11 to 16 kt becoming WNW after midnight. Rain. Seas 2 to 3 ft.

      E 16kt
      2-3ft

    • Sunday

      Sunday:W wind 12 to 17 kt increasing to 18 to 23 kt in the afternoon. Winds could gust as high as 31 kt. A chance of rain, mainly before 1pm. Seas 4 to 5 ft.

      ⇑W 23kt
      4-5ft

    • Sunday Night

      Sunday Night:WNW wind 27 to 29 kt, with gusts as high as 37 kt. Partly cloudy. Seas 6 to 7 ft.

      WNW 29kt
      6-7ft

    • Monday

      Monday:WNW wind 21 to 24 kt becoming W 17 to 20 kt in the afternoon. Sunny. Seas 5 ft subsiding to 3 ft.

      WNW 24kt⇓
      5ftWaves Subsiding

    • Monday Night

      Monday Night:WSW wind 18 to 20 kt. Partly cloudy. Seas around 4 ft.

      WSW 20kt
      4ft

    • Tuesday

      Tuesday:W wind around 17 kt becoming SW in the afternoon. Sunny. Seas 3 to 4 ft.

      W 17kt
      3-4ft


Associated Zone Forecast which includes this point

Last Update: 1:01 pm EST Jan 9, 2026
Forecast Valid: 3pm EST Jan 9, 2026-6pm EST Jan 16, 2026

View Nearby Observations

Detailed Forecast

...GALE WATCH IN EFFECT FROM SUNDAY EVENING THROUGH LATE SUNDAY

This Afternoon
S wind around 16 kt. Isolated showers after 5pm. Seas around 3 ft.
Tonight
SSW wind 16 to 19 kt becoming NW 10 to 13 kt after midnight. Showers likely, mainly before 10pm. Seas 3 to 4 ft.
Saturday
N wind 8 to 13 kt becoming E in the afternoon. Rain, mainly after 1pm. Seas 2 to 3 ft.
Saturday Night
E wind 11 to 16 kt becoming WNW after midnight. Rain. Seas 2 to 3 ft.
Sunday
W wind 12 to 17 kt increasing to 18 to 23 kt in the afternoon. Winds could gust as high as 31 kt. A chance of rain, mainly before 1pm. Seas 4 to 5 ft.
Sunday Night
WNW wind 27 to 29 kt, with gusts as high as 37 kt. Partly cloudy. Seas 6 to 7 ft.
Monday
WNW wind 21 to 24 kt becoming W 17 to 20 kt in the afternoon. Sunny. Seas 5 ft subsiding to 3 ft.
Monday Night
WSW wind 18 to 20 kt. Partly cloudy. Seas around 4 ft.
Tuesday
W wind around 17 kt becoming SW in the afternoon. Sunny. 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: 1:01 pm EST Jan 9, 2026
Forecast Valid: 3pm EST Jan 9, 2026-6pm EST Jan 16, 2026
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