Last Update: 349 PM EDT Tue Jul 21 2026

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New York, NY Local Forecast Office

46NM SSE Islip NY

Marine Zone Forecast


Rest Of Today
S winds 20 to 25 kt. Seas 5 to 6 ft, occasionally to 8 ft. Wave detail: S 6 ft at 6 seconds. Showers likely with chance of tstms.
Tonight
SW winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft, occasionally to 11 ft. Wave detail: S 8 ft at 7 seconds. Showers and chance of tstms in the evening, then showers and slight chance of tstms after midnight.
Wed
SW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 7 to 9 ft, occasionally to 11 ft. Wave detail: S 9 ft at 9 seconds. Chance of showers. Chance of tstms in the afternoon.
Wed Night
SW winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Seas 6 to 8 ft, occasionally to 10 ft. Wave detail: S 8 ft at 9 seconds. Chance of showers and tstms in the evening, then showers likely after midnight.
Thu
N winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt in the afternoon. Seas 4 to 6 ft, occasionally to 8 ft. Wave detail: S 5 ft at 8 seconds and NW 2 ft at 4 seconds. Chance of showers, mainly in the morning.
Thu Night
E winds 5 to 10 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave detail: S 4 ft at 8 seconds.
Fri
NE winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft.
Fri Night
E winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft.
Sat
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft.
Sat Night
NE winds 5 to 10 kt. Seas around 4 ft, occasionally to 5 ft.
Sun
NE winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft.
Sun Night
S winds 5 to 10 kt. Seas around 3 ft.

winds and seas may be higher in and near tstms.




Winds and seas may be higher in and near tstms.
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349 PM EDT Tue Jul 21 2026
 
 

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