Hazardous Weather Conditions
Last Update: 1005 PM EST Mon Dec 15 2025
For More Weather Information:
29NM ENE Hyannis MA
Marine Zone Forecast
Overnight
W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave detail: N 5 ft at 7 seconds and SE 1 foot at 10 seconds.
Tue
W winds 10 to 15 kt. Seas 2 to 4 ft. Wave detail: W 3 ft at 6 seconds and N 2 ft at 7 seconds.
Tue Night
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. Wave detail: SW 3 ft at 4 seconds and SE 1 foot at 11 seconds, becoming SW 5 ft at 5 seconds and SE 1 foot at 10 seconds.
Wed
SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave detail: SW 6 ft at 6 seconds and SE 2 ft at 10 seconds.
Wed Night
W winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave detail: W 5 ft at 5 seconds and S 4 ft at 9 seconds.
Thu
SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. Wave detail: S 3 ft at 4 seconds and S 3 ft at 9 seconds.
Thu Night
S winds 20 to 25 kt with gusts up to 35 kt, increasing to 25 to 30 kt with gusts up to 45 kt after midnight. Seas 4 to 6 ft, building to 6 to 9 ft after midnight. A chance of rain after midnight.
Fri
S winds 25 to 30 kt with gusts up to 45 kt. Seas 7 to 10 ft. Rain. Vsby 1 to 3 nm.
Fri Night
W winds 25 to 30 kt with gusts up to 35 kt. Seas 6 to 9 ft. A chance of rain.
Sat
W winds 20 to 25 kt. Seas 5 to 7 ft.
Sat Night
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 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.
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