Block Island Sound Marine Forecast

The Marine Weather Forecast In Detail:

ANZ237 Forecast Issued: 105 AM EDT Fri Aug 07 2026

Rest Of Tonight...Sw Winds 5 To 10 Kt. Seas 2 To 3 Ft. Wave Detail: Se 3 Ft At 7 Seconds And W 1 Foot At 3 Seconds. Patchy Fog. Vsby 1 Nm Or Less.
Fri...Sw Winds 5 To 10 Kt, Increasing To 10 To 15 Kt In The Afternoon. Seas 2 To 3 Ft. Wave Detail: Se 3 Ft At 7 Seconds And W 1 Foot At 3 Seconds. Patchy Fog In The Morning With Vsby 1 Nm Or Less.
Fri Night...Sw Winds 10 To 15 Kt, Diminishing To 5 To 10 Kt After Midnight. Seas 2 To 3 Ft. Wave Detail: Se 2 Ft At 8 Seconds And W 1 Foot At 3 Seconds. Patchy Fog After Midnight With Vsby 1 To 3 Nm.
Sat...Sw Winds 5 To 10 Kt, Increasing To 10 To 15 Kt With Gusts Up To 20 Kt In The Afternoon. Seas 2 To 3 Ft. Wave Detail: S 3 Ft At 6 Seconds And W 1 Foot At 3 Seconds. Patchy Fog In The Morning With Vsby 1 To 3 Nm.
Sat Night And Sun...Sw Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 2 To 3 Ft. Wave Detail: Se 3 Ft At 8 Seconds And W 1 Foot At 3 Seconds.
Sun Night...W Winds 10 To 15 Kt With Gusts Up To 20 Kt, Becoming Nw 5 To 10 Kt After Midnight. Seas 2 To 3 Ft. Wave Detail: Se 3 Ft At 8 Seconds And W 1 Foot At 3 Seconds.
Mon Through Tue...Sw Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 2 To 3 Ft.
Tue Night...W Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 2 To 3 Ft. A Chance Of Showers. Seas Are Reported As Significant Wave Height, Which Is The Average Of The Highest Third Of The Waves. Individual Wave Heights May Be More Than Twice The Significant Wave Height.