Coastal Waters Forecast for Boston Harbor (ANZ230) (Text-Only)
NWS Forecast for: Boston Harbor (ANZ230)
Issued by: National Weather Service Norton, MA
Last Update: 105 AM EST Thu Dec 25 2025




Rest Of Tonight: SW winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance.

Thu: SW winds 10 to 15 kt, becoming NW 20 to 25 kt in the afternoon. Gusts up to 30 kt. Waves around 2 ft.

Thu Night: NW winds 20 to 25 kt with gusts up to 30 kt. Waves around 2 ft.

Fri: NW winds 15 to 20 kt with gusts up to 25 kt, becoming N 10 to 15 kt in the afternoon. Waves around 2 ft.

Fri Night And Sat: N winds 5 to 10 kt. Waves around 2 ft. A chance of snow.

Sat Night: NW winds 5 to 10 kt. Waves 1 foot or less.

Sun: W winds 5 to 10 kt. Waves 1 foot or less.

Sun Night And Mon: SW winds around 10 kt, increasing to 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. Rain.

Mon Night: W winds 25 to 30 kt. Waves around 2 ft. A chance of rain.

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.







Zone Forecast: Boston Harbor (ANZ230)

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