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12NM NW Islip NY

[NOTICE]

Last Update: 7:33 am EDT May 18, 2026
Forecast Valid: 2pm EDT May 18, 2026-6pm EDT May 24, 2026

This Afternoon

S wind around 9 kt. Sunny. Seas 1 ft or less.

Tonight

S wind around 9 kt. Mostly clear. Seas 1 ft or less.

Tuesday

SSW wind 7 to 10 kt increasing to 10 to 13 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

SSW wind around 13 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

WSW wind 10 to 13 kt. Showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.

Wednesday Night

WNW wind around 10 kt becoming NNW after midnight. Showers, mainly before 8pm. Seas 1 ft or less.

Thursday

N wind 6 to 11 kt becoming variable and less than 5 kt in the afternoon. Partly sunny. Seas 1 ft or less.

Thursday Night

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

Friday

ENE wind around 9 kt becoming ESE in the afternoon. Partly 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.