For More Weather Information:

9NM SW Islip NY

[NOTICE]

Last Update: 9:37 pm EDT Jul 12, 2026
Forecast Valid: 11pm EDT Jul 12, 2026-6pm EDT Jul 19, 2026

Overnight

S wind 5 to 10 km/h. Mostly clear. Seas around 1 m.

Monday

S wind 5 to 10 km/h increasing to 18 to 23 km/h. Sunny. Seas 1 m or less.

Monday Night

SSW wind around 24 km/h becoming WSW after midnight. Winds could gust as high as 32 km/h. Mostly clear. Seas 1 m or less.

Tuesday

SW wind 18 to 23 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 39 km/h. Sunny. Seas 1 m or less.

Tuesday Night

SW wind 29 to 34 km/h, with gusts as high as 42 km/h. Mostly clear. Seas around 1 m.

Wednesday

WSW wind around 24 km/h, with gusts as high as 35 km/h. Sunny. Seas 1 m or less.

Wednesday Night

W wind 15 to 18 km/h becoming NW 10 to 13 km/h after midnight. Partly cloudy. Seas 1 m or less.

Thursday

NW wind 8 to 11 km/h becoming SW 13 to 18 km/h in the afternoon. Mostly sunny. Seas 1 m or less.

Thursday Night

SW wind 11 to 16 km/h becoming NW after midnight. Partly cloudy. Seas 1 m 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.