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

For More Weather Information:

New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Monday

      Monday:NE wind 9 to 12 kt becoming E 5 to 8 kt in the afternoon. Sunny. Seas 1 ft or less.

      NE 12kt⇓
      < 1ft

    • Monday Night

      Monday Night:SW wind around 8 kt. Clear. Seas 1 ft or less.

      SW 8kt
      < 1ft

    • Tuesday

      Tuesday:WSW wind 7 to 10 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.

      SSW 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind 8 to 12 kt. Partly cloudy. Seas 1 ft or less.

      SSW 12kt
      < 1ft

    • Wednesday

      Wednesday:S wind 8 to 11 kt. A chance of showers, with thunderstorms also possible after 5pm. Seas 1 ft or less.

      S 11kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 7 to 11 kt. Showers likely and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am. Seas 1 ft or less.

      S 11kt
      < 1ft

    • Thursday

      Thursday:WSW wind around 7 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

      WSW 7kt
      < 1ft

    • Thursday Night

      Thursday Night:SSE wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.

      SSE 6kt⇓
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. A chance of showers. Seas 1 ft or less.

      ⇑S 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 3:54 am EDT Jun 8, 2026
Forecast Valid: 4am EDT Jun 8, 2026-6pm EDT Jun 14, 2026

View Nearby Observations

Detailed Forecast


Monday
NE wind 9 to 12 kt becoming E 5 to 8 kt in the afternoon. Sunny. Seas 1 ft or less.
Monday Night
SW wind around 8 kt. Clear. Seas 1 ft or less.
Tuesday
WSW wind 7 to 10 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.
Tuesday Night
SSW wind 8 to 12 kt. Partly cloudy. Seas 1 ft or less.
Wednesday
S wind 8 to 11 kt. A chance of showers, with thunderstorms also possible after 5pm. Seas 1 ft or less.
Wednesday Night
S wind 7 to 11 kt. Showers likely and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am. Seas 1 ft or less.
Thursday
WSW wind around 7 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Thursday Night
SSE wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. A chance of showers. Seas 1 ft or less.

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: 40.91°N 73.39°W
Last Update: 3:54 am EDT Jun 8, 2026
Forecast Valid: 4am EDT Jun 8, 2026-6pm EDT Jun 14, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data