Back

Cape Cod Bay Marine Forecast

Updated 1:04am EDT Apr 5, 2026
Zone Map
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.