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New York, NY Local Forecast Office

9NM SW Islip NY

Marine Point Forecast

[NOTICE]

Late Afternoon
W 15kt
< 1ft
Tonight
W 18kt
< 1ft
Veterans Day
⇑W 24kt
< 1ft
Tuesday Night
W 23kt
< 1ft
Wednesday
WSW 19kt
< 1ft
Wednesday Night
W 18kt
< 1ft
Thursday
WNW 18kt
< 1ft
Thursday Night
WNW 16kt
< 1ft
Friday
WNW 16kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 1:28 pm EST Nov 10, 2025
Forecast Valid: 4pm EST Nov 10, 2025-6pm EST Nov 17, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Late Afternoon

W wind around 15 kt. A chance of showers. Seas 1 ft or less.

Tonight

W wind 16 to 18 kt. A chance of showers before 7pm. Seas 1 ft or less.

Veterans Day

W wind 18 to 21 kt increasing to 21 to 24 kt in the afternoon. Winds could gust as high as 35 kt. A slight chance of rain and snow showers between 10am and 4pm. Seas 1 ft or less.

Tuesday Night

W wind 18 to 23 kt, with gusts as high as 32 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

WSW wind around 19 kt, with gusts as high as 26 kt. Partly sunny. Seas 1 ft or less.

Wednesday Night

W wind around 18 kt. Partly cloudy. Seas 1 ft or less.

Thursday

WNW wind around 18 kt, with gusts as high as 24 kt. Mostly sunny. Seas 1 ft or less.

Thursday Night

WNW wind 14 to 16 kt. Mostly clear. Seas 1 ft or less.

Friday

WNW wind 13 to 16 kt. Mostly sunny. Seas 1 ft or less.

*Notices:

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.
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.