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Block Island Sound Marine Forecast

Updated 1:03am EDT Aug 27, 2026
Zone Map
Rest Of Tonight
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SW 1 foot at 6 seconds. Patchy fog. Vsby 1 to 3 NM.
Thu
S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu Night
S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 2 ft at 9 seconds. A chance of.
Fri
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 3 ft at 8 seconds.
Fri Night
W winds 5 to 10 kt, becoming NW with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds.
Sat And Sat Night
SW winds 5 to 10 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 3 ft.