For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 1:22 am EST Dec 24, 2025
Forecast Valid: 5am EST Dec 24, 2025-6pm EST Dec 30, 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EST EARLY THIS

Today

NW wind 23 to 26 kt becoming NNW 19 to 22 kt in the afternoon. Sunny. Seas 3 to 4 ft.

Tonight

N wind 11 to 14 kt becoming N 5 to 8 kt after midnight. Increasing clouds. Seas 1 to 2 ft.

Christmas Day

SW wind 13 to 16 kt becoming WSW 16 to 19 kt in the afternoon. A chance of rain before 1pm. Seas 1 ft building to 4 ft.

Thursday Night

N wind 18 to 20 kt. Mostly cloudy. Seas around 4 ft.

Friday

N wind 14 to 17 kt becoming NE 10 to 13 kt in the afternoon. A chance of snow after 1pm. Seas 4 ft subsiding to 2 ft.

Friday Night

E wind 10 to 13 kt increasing to 16 to 19 kt after midnight. Snow before 1am, then rain and snow. Seas 2 ft building to 4 ft.

Saturday

E wind 18 to 20 kt. Snow likely before 1pm, then a chance of rain and snow. Seas 4 to 5 ft.

Saturday Night

ENE wind 10 to 14 kt. Cloudy. Seas 3 to 4 ft.

Sunday

E wind 11 to 15 kt becoming S in the afternoon. Rain likely. Seas around 3 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.