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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Sunday

      Sunday:E wind 10 to 13 km/h increasing to 13 to 16 km/h in the afternoon. Partly sunny. Seas around 1 m.

      ⇑E 16km/h
      1m

    • Sunday Night

      Sunday Night:SSE wind 10 to 14 km/h. Mostly cloudy. Seas around 1 m.

      SSE 14km/h
      1m

    • Monday

      Monday:S wind 10 to 13 km/h increasing to 13 to 16 km/h in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas around 1 m.

      ⇑S 16km/h
      1m

    • Monday Night

      Monday Night:S wind 10 to 13 km/h becoming SW after midnight. A chance of showers and thunderstorms before 2am, then a slight chance of showers. Seas around 1 m.

      S 13km/h
      1m

    • Tuesday

      Tuesday:W wind 8 to 11 km/h becoming S 13 to 16 km/h in the afternoon. A slight chance of showers before 8am. Seas 1 m or less.

      ⇑S 16km/h
      < 1m

    • Tuesday Night

      Tuesday Night:SSW wind 11 to 16 km/h. Partly cloudy. Seas around 1 m.

      SSW 16km/h
      1m

    • Wednesday

      Wednesday:SW wind 10 to 15 km/h becoming S 16 to 21 km/h in the afternoon. Mostly sunny. Seas around 1 m.

      ⇑S 21km/h
      1m

    • Wednesday Night

      Wednesday Night:SW wind 21 to 24 km/h decreasing to 16 to 19 km/h after midnight. Winds could gust as high as 32 km/h. Partly cloudy. Seas around 1 m.

      SW 24km/h⇓
      1m

    • Thursday

      Thursday:SSW wind 16 to 21 km/h increasing to 21 to 26 km/h in the afternoon. Winds could gust as high as 35 km/h. A chance of showers. Seas around 1 m.

      ⇑SSW 26km/h
      1m


Associated Zone Forecast which includes this point

Last Update: 6:14 pm EDT Jul 12, 2025
Forecast Valid: 1am EDT Jul 13, 2025-6pm EDT Jul 19, 2025

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Detailed Forecast


Sunday
E wind 10 to 13 km/h increasing to 13 to 16 km/h in the afternoon. Partly sunny. Seas around 1 m.
Sunday Night
SSE wind 10 to 14 km/h. Mostly cloudy. Seas around 1 m.
Monday
S wind 10 to 13 km/h increasing to 13 to 16 km/h in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas around 1 m.
Monday Night
S wind 10 to 13 km/h becoming SW after midnight. A chance of showers and thunderstorms before 2am, then a slight chance of showers. Seas around 1 m.
Tuesday
W wind 8 to 11 km/h becoming S 13 to 16 km/h in the afternoon. A slight chance of showers before 8am. Seas 1 m or less.
Tuesday Night
SSW wind 11 to 16 km/h. Partly cloudy. Seas around 1 m.
Wednesday
SW wind 10 to 15 km/h becoming S 16 to 21 km/h in the afternoon. Mostly sunny. Seas around 1 m.
Wednesday Night
SW wind 21 to 24 km/h decreasing to 16 to 19 km/h after midnight. Winds could gust as high as 32 km/h. Partly cloudy. Seas around 1 m.
Thursday
SSW wind 16 to 21 km/h increasing to 21 to 26 km/h in the afternoon. Winds could gust as high as 35 km/h. A chance of showers. Seas around 1 m.

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.
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ABOUT THIS FORECAST

Point Forecast: 40.57°N 73.57°W
Last Update: 6:14 pm EDT Jul 12, 2025
Forecast Valid: 1am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
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