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12NM NW Islip NY

[NOTICE]

Last Update: 2:44 am EDT Aug 17, 2026
Forecast Valid: 3am EDT Aug 17, 2026-6pm EDT Aug 23, 2026

Monday

SSE wind 8 to 11 kt becoming NNW 5 to 8 kt in the morning. Showers, mainly before 8am. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Tuesday

Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming SW around 6 kt in the afternoon. Sunny. Seas 1 ft or less.

Wednesday Night

SSW wind 5 to 8 kt becoming W after midnight. Partly cloudy. Seas 1 ft or less.

Thursday

Variable winds 5 kt or less. A chance of showers after 2pm. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

Friday

NNE wind 5 to 7 kt becoming ENE in the afternoon. Mostly sunny. Seas 1 ft or less.

*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.