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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Tonight
W 15kt
1ft
Friday
⇑W 23kt
< 1ft
Friday Night
NW 24kt⇓
1ft
Saturday
NW 13kt
< 1ft
Saturday Night
N 9kt
1ft
Sunday
⇑NE 23kt
1-2ft
Sunday Night
NE 28kt⇓
2ft
Monday
⇑NW 23kt
2ft
Monday Night
WNW 28kt
2ft

Associated Zone Forecast which includes this point

Last Update: 3:49 pm EST Jan 22, 2026
Forecast Valid: 4pm EST Jan 22, 2026-6pm EST Jan 29, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH

Tonight

W wind 13 to 15 kt. Mostly cloudy. Seas around 1 ft.

Friday

W wind 11 to 16 kt increasing to 18 to 23 kt. Mostly sunny. Seas 1 ft or less.

Friday Night

NW wind 21 to 24 kt decreasing to 16 to 19 kt after midnight. Partly cloudy. Seas around 1 ft.

Saturday

NW wind 9 to 13 kt. Mostly sunny. Seas 1 ft or less.

Saturday Night

N wind 7 to 9 kt. A chance of snow after 1am. Seas around 1 ft.

Sunday

NE wind 11 to 16 kt increasing to 18 to 23 kt in the afternoon. Winds could gust as high as 31 kt. Snow. The snow could be heavy at times. Seas 1 to 2 ft.

Sunday Night

NE wind 25 to 28 kt decreasing to 21 to 24 kt after midnight. Winds could gust as high as 35 kt. Snow. Seas around 2 ft.

Monday

N wind 16 to 19 kt becoming NW 20 to 23 kt in the afternoon. Winds could gust as high as 31 kt. Snow likely. Seas around 2 ft.

Monday Night

WNW wind 25 to 28 kt, with gusts as high as 36 kt. Partly cloudy. Seas around 2 ft.

*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.