Last Update: 1003 AM EDT Thu Sep 17 2026
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8NM S Hyannis MA
Marine Zone Forecast
This Afternoon
SW winds around 10 kt. Seas around 2 ft. Wave detail: SW 1 foot at 2 seconds and E 1 foot at 8 seconds.
Tonight
SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave detail: SW 2 ft at 3 seconds and E 1 foot at 7 seconds. Showers likely after midnight.
Fri
W winds 10 to 15 kt, becoming N in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: W 2 ft at 3 seconds and E 1 foot at 7 seconds. Patchy fog in the morning. A chance of showers in the morning.
Fri Night
N winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 3 ft. Wave detail: NE 3 ft at 4 seconds and W 1 foot at 5 seconds.
Sat
NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave detail: NE 3 ft at 4 seconds and W 1 foot at 5 seconds.
Sat Night
E winds 5 to 10 kt. Seas around 2 ft. Wave detail: SE 1 foot at 3 seconds and NE 1 foot at 7 seconds.
Sun And Sun Night
SE winds 10 to 15 kt, increasing to 15 to 20 kt. Seas 2 to 3 ft. Showers likely.
Mon
NE winds 15 to 20 kt with gusts up to 25 kt. Seas around 3 ft. A chance of showers.
Mon Night
NE winds 20 to 25 kt. Seas 2 to 3 ft.
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.
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.
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.
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