Coastal Waters Forecast for Boston Harbor (ANZ230) (Text-Only)
NWS Forecast for: Boston Harbor (ANZ230)
Issued by: National Weather Service Norton, MA
Last Update: 704 PM EDT Fri Jun 12 2026
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Tonight: E winds around 5 kt, becoming NW after midnight. Waves 1 foot or less, then around 2 ft after midnight. A slight chance of showers.

Sat: NW winds 5 to 10 kt. Waves around 2 ft in the morning, then 1 foot or less.

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

Sun: SW winds 5 to 10 kt, becoming S 15 to 20 kt with gusts up to 25 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon.

Sun Night: S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Waves around 2 ft. A chance of showers in the evening, then showers after midnight.

Mon: W winds 5 to 10 kt. Waves around 2 ft. Showers likely in the morning.

Mon Night: NW winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less.

Tue Through Wed Night: S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 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.







Zone Forecast: Boston Harbor (ANZ230)

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