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Last Update: 404 PM EDT Sun Aug 31 2025
For More Weather Information:
20NM W Hyannis MA
Marine Zone Forecast
Tonight
NE winds 5 to 10 kt. Seas 1 foot or less. Wave detail: NE 1 foot at 2 seconds and NW 1 foot at 4 seconds.
Mon
NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave detail: NE 1 foot at 2 seconds and SE 1 foot at 7 seconds.
Mon Night
NE winds 10 to 15 kt. Seas around 2 ft. Wave detail: NE 1 foot at 3 seconds and SE 1 foot at 8 seconds.
Tue
NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave detail: SE 2 ft at 8 seconds and NE 1 foot at 3 seconds.
Tue Night
NE winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. Wave detail: SE 2 ft at 8 seconds and NW 1 foot at 2 seconds.
Wed And Wed Night
SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave detail: SE 2 ft at 8 seconds and W 1 foot at 2 seconds.
Thu And Thu Night
S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Fri And Fri Night
S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 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.
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.
Additional Forecasts and Information
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