National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

13NM E Islip NY

Marine Point Forecast

[NOTICE]

    • Tuesday

      Tuesday:SW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 21 kt. A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Seas 1 to 2 ft.

      ⇑SW 14kt
      1-2ft

    • Tuesday Night

      Tuesday Night:SW wind 6 to 11 kt. Showers and thunderstorms likely between 8pm and 2am, then a chance of showers. Seas 1 to 2 ft.

      SW 11kt
      1-2ft

    • Wednesday

      Wednesday:WSW wind 5 to 7 kt. A chance of showers before 8am. Seas around 1 ft.

      WSW 7kt
      1ft

    • Wednesday Night

      Wednesday Night:SW wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

      SW 6kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SW 5 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SW 9kt
      < 1ft

    • Thursday Night

      Thursday Night:W wind around 6 kt becoming NW after midnight. Mostly clear. Seas around 1 ft.

      W 6kt
      1ft

    • Independence Day

      Independence Day:NW wind around 7 kt becoming W in the afternoon. Sunny. Seas around 1 ft.

      NW 7kt
      1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑S 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 10:25 pm EDT Jun 30, 2025
Forecast Valid: 1am EDT Jul 1, 2025-6pm EDT Jul 7, 2025

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Detailed Forecast


Tuesday
SW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 21 kt. A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Seas 1 to 2 ft.
Tuesday Night
SW wind 6 to 11 kt. Showers and thunderstorms likely between 8pm and 2am, then a chance of showers. Seas 1 to 2 ft.
Wednesday
WSW wind 5 to 7 kt. A chance of showers before 8am. Seas around 1 ft.
Wednesday Night
SW wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SW 5 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.
Thursday Night
W wind around 6 kt becoming NW after midnight. Mostly clear. Seas around 1 ft.
Independence Day
NW wind around 7 kt becoming W in the afternoon. Sunny. Seas around 1 ft.
Friday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Winds and waves may be higher in and near tstms.

*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: 40.76°N 72.92°W
Last Update: 10:25 pm EDT Jun 30, 2025
Forecast Valid: 1am EDT Jul 1, 2025-6pm EDT Jul 7, 2025
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