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15NM SW Islip NY

[NOTICE]

Last Update: 1:17 am EST Dec 28, 2025
Forecast Valid: 1am EST Dec 28, 2025-6pm EST Jan 3, 2026

Sunday

WNW wind 6 to 9 kt becoming SW 9 to 12 kt in the afternoon. A chance of rain after 4pm. Seas around 3 ft.

Sunday Night

SSW wind 12 to 15 kt increasing to 18 to 21 kt after midnight. Rain, mainly before 4am. Seas 3 ft building to 5 ft.

Monday

SSW wind 20 to 25 kt becoming W in the afternoon. Winds could gust as high as 31 kt. Rain, mainly after 7am. Seas around 6 ft.

Monday Night

W wind around 34 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 7 to 8 ft.

Tuesday

W wind 29 to 31 kt, with gusts as high as 37 kt. Mostly cloudy. Seas 6 to 7 ft.

Tuesday Night

W wind 23 to 28 kt. Mostly cloudy. Seas 5 to 6 ft.

Wednesday

W wind 23 to 25 kt. Partly sunny. Seas around 5 ft.

Wednesday Night

W wind 22 to 25 kt. Mostly cloudy. Seas around 5 ft.

New Year's Day

WNW wind 18 to 20 kt. A chance of snow before 1pm, then a chance of rain and snow. Seas 3 to 4 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.