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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Today
E 12kt
1ft
Tonight
NE 7kt⇓
< 1ft
Monday
⇑W 17kt
1-2ft
Monday Night
NW 14kt
2ft
Tuesday
NW 9kt
1ft
Tuesday Night
WNW 6kt⇓
< 1ft
Wednesday
⇑SSW 11kt
< 1ft
Wednesday Night
SSW 10kt
1ft
Thursday
WSW 8kt
1ft

Associated Zone Forecast which includes this point

Last Update: 2:09 am EDT Oct 4, 2026
Forecast Valid: 5am EDT Oct 4, 2026-6pm EDT Oct 10, 2026

View Nearby Observations

Detailed Forecast

Today

E wind 8 to 12 kt. A chance of showers after 2pm. Seas around 1 ft.

Tonight

NE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers, mainly before 8pm. Seas 1 ft or less.

Monday

W wind 7 to 12 kt increasing to 12 to 17 kt in the afternoon. Winds could gust as high as 23 kt. Partly sunny, then gradually becoming sunny. Seas 1 to 2 ft.

Monday Night

NW wind around 14 kt, with gusts as high as 20 kt. Clear. Seas around 2 ft.

Tuesday

NW wind around 9 kt. Sunny. Seas around 1 ft.

Tuesday Night

WNW wind around 6 kt becoming variable and less than 5 kt after midnight. Clear. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming SSW 6 to 11 kt in the morning. Sunny. Seas 1 ft or less.

Wednesday Night

SSW wind 8 to 10 kt. Mostly clear. Seas around 1 ft.

Thursday

WSW wind 6 to 8 kt. Sunny. Seas around 1 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.