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Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket Marine Forecast

Updated 1:03am EDT Aug 27, 2026
Zone Map
Rest Of Tonight
SW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and SW 1 foot at 6 seconds.
Thu
S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu Night
S winds around 10 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 9 seconds. A chance of showers after midnight.
Fri
S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds.
Fri Night
SW winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds.
Sat And Sat Night
SW winds 10 to 15 kt with gusts up to 20 kt.
Sun Through Mon Night
SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.