Last Update: 224 AM EDT Thu May 21 2026

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New York, NY Local Forecast Office

46NM S Islip NY

Marine Zone Forecast


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

winds and seas may be higher in and near tstms.




Winds and seas may be higher in and near tstms.
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224 AM EDT Thu May 21 2026
 
 

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