
Cape Cod Bay Marine Forecast
Updated 1:04am EDT Apr 5, 2026
Small Craft Advisory In Effect Through This Evening
Rest Of Tonight
SE winds 10 to 15 kt with gusts up to 20 kt.
Sun
S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 4 seconds and NE 3 ft at 7 seconds.
Sun Night
SW winds 15 to 20 kt, becoming W after midnight.
Mon
W winds 15 to 20 kt with gusts up to 25 kt, diminishing to around 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and SE 1 foot at 7 seconds.
Mon Night
W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 foot at 4 seconds and SE 1 foot at 8 seconds.
Tue And Tue Night
NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds. A chance of showers.
Wed Through Thu Night
SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.