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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Late Afternoon
S 6kt
1ft
Tonight
SW 9kt
1ft
Thursday
⇑W 18kt
3ft
Thursday Night
W 22kt
3ft
Friday
W 20kt⇓
2-3ft
Friday Night
SW 13kt
1-2ft
Saturday
SSW 9kt
< 1ft
Saturday Night
W 8kt
< 1ft
Sunday
W 14kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:31 pm EST Jan 14, 2026
Forecast Valid: 5pm EST Jan 14, 2026-6pm EST Jan 21, 2026

View Nearby Observations

Detailed Forecast

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

Late Afternoon

S wind around 6 kt. A slight chance of rain. Seas around 1 ft.

Tonight

S wind 6 to 9 kt becoming SW after midnight. Rain likely, mainly between 7pm and 1am. Seas around 1 ft.

Thursday

W wind 10 to 13 kt increasing to 15 to 18 kt in the afternoon. Winds could gust as high as 24 kt. Cloudy through mid morning, then gradual clearing. Seas 1 ft building to 3 ft.

Thursday Night

W wind 19 to 22 kt, with gusts as high as 28 kt. Partly cloudy. Seas around 3 ft.

Friday

W wind 17 to 20 kt becoming W 13 to 16 kt in the afternoon. Winds could gust as high as 26 kt. Sunny. Seas 2 to 3 ft.

Friday Night

SW wind 10 to 13 kt. Mostly cloudy. Seas 1 to 2 ft.

Saturday

SSW wind around 9 kt. A chance of rain and snow before 1pm, then a chance of rain. Seas 1 ft or less.

Saturday Night

W wind around 8 kt. Mostly cloudy. Seas 1 ft or less.

Sunday

W wind 9 to 14 kt. A chance of snow. 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.