For More Weather Information:

13NM E Islip NY

[NOTICE]

Last Update: 1:36 am EST Dec 25, 2025
Forecast Valid: 2am EST Dec 25, 2025-6pm EST Dec 31, 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST THIS MORNING

Christmas Day

SW wind 8 to 11 kt becoming NW 14 to 17 kt in the morning. Cloudy, then gradually becoming mostly sunny. Seas 1 ft or less building to 2 ft.

Thursday Night

NNW wind 16 to 21 kt. Partly cloudy. Seas 1 to 2 ft.

Friday

N wind 11 to 14 kt becoming NE 7 to 10 kt in the afternoon. A slight chance of snow after 1pm. Seas around 1 ft.

Friday Night

ENE wind 5 to 8 kt increasing to 10 to 13 kt after midnight. Snow. Seas around 1 ft.

Saturday

NNE wind 10 to 14 kt. A chance of snow, mainly before 1pm. Seas around 1 ft.

Saturday Night

NNE wind 5 to 8 kt. Mostly cloudy. Seas around 1 ft.

Sunday

Variable winds less than 5 kt becoming W 5 to 9 kt in the morning. A chance of rain after 1pm. Seas around 1 ft.

Sunday Night

SW wind 8 to 12 kt. Rain. Seas 1 to 2 ft.

Monday

SSW wind 15 to 18 kt becoming W 20 to 23 kt in the afternoon. Rain. Seas around 2 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.