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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Tuesday
SW 13kt
1-2ft
Tuesday Night
SSW 14kt
1-2ft
Wednesday
WSW 11kt
1ft
Wednesday Night
NE 11kt
1ft
Thursday
ENE 13kt
1-2ft
Thursday Night
E 11kt
1ft
Friday
S 7kt
1ft
Friday Night
SW 10kt
1-2ft
Saturday
SSE 9kt
1ft

Associated Zone Forecast which includes this point

Last Update: 2:46 am EDT Mar 31, 2026
Forecast Valid: 3am EDT Mar 31, 2026-6pm EDT Apr 6, 2026

View Nearby Observations

Detailed Forecast

Tuesday

SW wind 10 to 13 kt. Showers likely, mainly before 11am. Seas 1 to 2 ft.

Tuesday Night

SSW wind 11 to 14 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms, then a chance of showers after 2am. Seas 1 to 2 ft.

Wednesday

WSW wind around 11 kt. A chance of showers before 8am, then a chance of rain between 8am and 2pm, then rain likely and possibly a thunderstorm after 2pm. Seas around 1 ft.

Wednesday Night

NE wind 8 to 11 kt. Rain and possibly a thunderstorm. Seas around 1 ft.

Thursday

ENE wind around 13 kt. A chance of rain, mainly before 2pm. Seas 1 to 2 ft.

Thursday Night

E wind 8 to 11 kt. A chance of rain between 8pm and 2am. Seas around 1 ft.

Friday

E wind 5 to 7 kt becoming SSW in the afternoon. Mostly cloudy. Seas around 1 ft.

Friday Night

SW wind 8 to 10 kt. Mostly cloudy. Seas 1 to 2 ft.

Saturday

WSW wind 6 to 9 kt becoming SSE in the afternoon. Partly sunny. Seas around 1 ft.

Winds and seas may be higher in and near tstms.

*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.