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

For More Weather Information:

New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Friday

      Friday:W wind 5 to 8 kt becoming S 8 to 11 kt in the afternoon. Mostly sunny. Seas around 2 ft.

      ⇑S 11kt
      2ft

    • Friday Night

      Friday Night:SW wind around 10 kt. Partly cloudy. Seas around 3 ft.

      SW 10kt
      3ft

    • Saturday

      Saturday:SSW wind 10 to 13 kt increasing to 15 to 18 kt in the afternoon. Winds could gust as high as 24 kt. Mostly sunny. Seas 3 to 4 ft.

      ⇑SSW 18kt
      3-4ft

    • Saturday Night

      Saturday Night:WSW wind 16 to 19 kt decreasing to 12 to 15 kt in the evening. Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Seas 5 ft subsiding to 3 ft.

      WSW 19kt⇓
      5ftWaves Subsiding

    • Sunday

      Sunday:W wind around 11 kt. A chance of showers before 8am, then a slight chance of showers after 2pm. Seas 3 to 4 ft.

      W 11kt
      3-4ft

    • Sunday Night

      Sunday Night:NNW wind 10 to 14 kt becoming NNE after midnight. Partly cloudy. Seas around 3 ft.

      N 14kt
      3ft

    • Monday

      Monday:NE wind 9 to 11 kt becoming SE in the afternoon. Sunny. Seas 2 to 3 ft.

      NE 11kt
      2-3ft

    • Monday Night

      Monday Night:SSE wind 6 to 10 kt becoming W after midnight. Mostly clear. Seas around 2 ft.

      SSE 10kt
      2ft

    • Tuesday

      Tuesday:WNW wind 5 to 8 kt becoming SSW 8 to 11 kt in the afternoon. Sunny. Seas around 2 ft.

      ⇑SSW 11kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 3:08 am EDT Jun 5, 2026
Forecast Valid: 3am EDT Jun 5, 2026-6pm EDT Jun 11, 2026

View Nearby Observations

Detailed Forecast


Friday
W wind 5 to 8 kt becoming S 8 to 11 kt in the afternoon. Mostly sunny. Seas around 2 ft.
Friday Night
SW wind around 10 kt. Partly cloudy. Seas around 3 ft.
Saturday
SSW wind 10 to 13 kt increasing to 15 to 18 kt in the afternoon. Winds could gust as high as 24 kt. Mostly sunny. Seas 3 to 4 ft.
Saturday Night
WSW wind 16 to 19 kt decreasing to 12 to 15 kt in the evening. Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Seas 5 ft subsiding to 3 ft.
Sunday
W wind around 11 kt. A chance of showers before 8am, then a slight chance of showers after 2pm. Seas 3 to 4 ft.
Sunday Night
NNW wind 10 to 14 kt becoming NNE after midnight. Partly cloudy. Seas around 3 ft.
Monday
NE wind 9 to 11 kt becoming SE in the afternoon. Sunny. Seas 2 to 3 ft.
Monday Night
SSE wind 6 to 10 kt becoming W after midnight. Mostly clear. Seas around 2 ft.
Tuesday
WNW wind 5 to 8 kt becoming SSW 8 to 11 kt in the afternoon. Sunny. Seas around 2 ft.

Winds and seas 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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 40.53°N 73.44°W
Last Update: 3:08 am EDT Jun 5, 2026
Forecast Valid: 3am EDT Jun 5, 2026-6pm EDT Jun 11, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data