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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Today
Light Wind
< 1ft
Tonight
SW 6kt⇓
< 1ft
Sunday
⇑S 15kt
2ft
Sunday Night
S 15kt
1-2ft
Monday
WNW 12kt
1ft
Monday Night
WNW 10kt⇓
< 1ft
Tuesday
⇑SSW 7kt
< 1ft
Tuesday Night
SSW 9kt⇓
< 1ft
Wednesday
⇑S 11kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:50 am EDT Jun 13, 2026
Forecast Valid: 6am EDT Jun 13, 2026-6pm EDT Jun 19, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Tonight

SW wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming S 10 to 15 kt in the morning. Winds could gust as high as 22 kt. A chance of showers and thunderstorms after 5pm. Seas 1 ft or less building to 2 ft.

Sunday Night

S wind 10 to 15 kt becoming W after midnight. Winds could gust as high as 21 kt. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Seas 1 to 2 ft.

Monday

WNW wind 9 to 12 kt. A chance of showers before 8am. Seas around 1 ft.

Monday Night

WNW wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

SSW wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming S 6 to 11 kt in the morning. Mostly sunny. Seas 1 ft or less.

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.