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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Monday
SW 17kt
< 1ft
Monday Night
SW 15kt
< 1ft
Tuesday
SSW 14kt
< 1ft
Tuesday Night
SSW 18kt
< 1ft
Wednesday
SW 17kt
1ft
Wednesday Night
NW 11kt
< 1ft
Thursday
E 19kt
1ft
Thursday Night
E 13kt
1ft
Friday
S 10kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:28 am EDT Mar 30, 2026
Forecast Valid: 4am EDT Mar 30, 2026-6pm EDT Apr 5, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING

Monday

SW wind 14 to 17 kt. A slight chance of showers after 2pm. Seas 1 ft or less.

Monday Night

SW wind 11 to 15 kt. Showers likely, mainly after 5am. Seas 1 ft or less.

Tuesday

SSW wind 12 to 14 kt. Showers likely, mainly before 8am. Seas 1 ft or less.

Tuesday Night

SSW wind 15 to 18 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

SW wind 13 to 17 kt. Showers likely and possibly a thunderstorm, mainly after 5pm. Seas around 1 ft.

Wednesday Night

NW wind 9 to 11 kt becoming ENE after midnight. Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Seas 1 ft or less.

Thursday

E wind around 19 kt. A chance of showers before 2pm. Seas around 1 ft.

Thursday Night

E wind 10 to 13 kt. A chance of rain. Seas around 1 ft.

Friday

SE wind around 10 kt becoming S in the morning. A chance of rain. 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.