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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]

Sunday
SW 10kt
2ft
Sunday Night
WNW 9kt
2ft
Monday
N 9kt
2ft
Monday Night
NNE 10kt
2ft
Tuesday
NE 9kt
2ft
Tuesday Night
SSE 9kt
2ft
Wednesday
⇑S 12kt
2ft
Wednesday Night
S 13kt
2ft
Thursday
⇑S 15kt
2ft

Associated Zone Forecast which includes this point

Last Update: 3:09 pm EDT Jul 19, 2025
Forecast Valid: 1am EDT Jul 20, 2025-6pm EDT Jul 26, 2025

View Nearby Observations

Detailed Forecast

Sunday

S wind 5 to 10 kt becoming SW in the morning. A chance of showers and thunderstorms before 11am, then a chance of showers and thunderstorms after 2pm. Seas around 2 ft.

Sunday Night

WNW wind around 9 kt becoming NNW after midnight. A chance of showers and thunderstorms before 8pm. Seas around 2 ft.

Monday

N wind around 9 kt. Sunny. Seas around 2 ft.

Monday Night

N wind around 10 kt becoming NNE after midnight. Mostly clear. Seas around 2 ft.

Tuesday

NE wind 7 to 9 kt becoming SE in the afternoon. Sunny. Seas around 2 ft.

Tuesday Night

SSE wind 5 to 9 kt becoming S after midnight. Mostly clear. Seas around 2 ft.

Wednesday

NNE wind 5 to 8 kt becoming S 9 to 12 kt in the afternoon. Sunny. Seas around 2 ft.

Wednesday Night

S wind 10 to 13 kt. Partly cloudy. Seas around 2 ft.

Thursday

S wind 9 to 12 kt increasing to 12 to 15 kt in the afternoon. Mostly sunny. Seas around 2 ft.

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.