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12NM NW Islip NY

[NOTICE]

Last Update: 2:46 am EDT Apr 12, 2026
Forecast Valid: 3am EDT Apr 12, 2026-6pm EDT Apr 18, 2026

Sunday

Variable winds less than 5 kt becoming S 5 to 8 kt in the morning. Increasing clouds. Seas 1 ft or less.

Sunday Night

S wind around 10 kt. Mostly cloudy. Seas around 1 ft.

Monday

SSW wind around 13 kt. A slight chance of showers after 2pm. Seas 1 to 2 ft.

Monday Night

WSW wind 10 to 13 kt decreasing to 7 to 10 kt after midnight. A slight chance of showers before 8pm. Seas 1 to 2 ft.

Tuesday

SSW wind 5 to 10 kt. Mostly sunny. Seas around 1 ft.

Tuesday Night

SSW wind 7 to 12 kt. Mostly cloudy. Seas around 1 ft.

Wednesday

WSW wind 6 to 9 kt. Mostly sunny. Seas around 1 ft.

Wednesday Night

WSW wind 5 to 7 kt. A chance of showers. Seas around 1 ft.

Thursday

SSW wind 5 to 10 kt. Partly 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.