Massachusetts Marine Forecasts
NWS marine forecasts for 13 coastal waters zones off Massachusetts, with current wind and seas from the nearest buoy and 3-day charts.
Massachusetts forecast register
Named coastal zones, current observations and official advisories
| Forecast zoneForecast zone | Wind nowWind now | ConditionsConditions |
|---|---|---|
| Boston Harbor | SSE 2 ktSSE 2 kt | peak 18 kt Fri 1 PMpeak 18 kt Fri 1 PM |
| Buzzards Bay | SSW 11 ktSSW 11 kt | Small Craft AdvisorySmall Craft Advisory |
| Cape Cod Bay | ESE 1 ktESE 1 kt | Small Craft AdvisorySmall Craft Advisory |
| Coastal Waters extending South of Marthas Vineyard and Nantucket | SE 10 ktSE 10 kt | Small Craft AdvisorySmall Craft Advisory |
| Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary | SSE 16 ktSSE 16 kt | Small Craft AdvisorySmall Craft Advisory |
| Provincetown MA to Chatham MA to Nantucket | SSE 12 ktSSE 12 kt | Small Craft AdvisorySmall Craft Advisory |
| Massachusetts Bay and Ipswich Bay | SSE 16 ktSSE 16 kt | peak 20 kt Fri 11 AMpeak 20 kt Fri 11 AM |
| Nantucket Sound | SSE 12 ktSSE 12 kt | Small Craft AdvisorySmall Craft Advisory |
| Rhode Island Sound | SSE 7 ktSSE 7 kt | Small Craft AdvisorySmall Craft Advisory |
| Vineyard Sound | ESE 1 ktESE 1 kt | Small Craft AdvisorySmall Craft Advisory |
Scroll across the table for all readings →
Massachusetts marine forecasts: common questions
Is there a small craft advisory off Massachusetts right now?
8 of the 13 Massachusetts marine zones are under an active advisory or warning, Buzzards Bay (small craft advisory), Cape Cod Bay (small craft advisory), Coastal Waters extending South of Marthas Vineyard and Nantucket (small craft advisory), Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary (small craft advisory) and 4 others. Each zone page shows the expiry time and the full text.
How windy is it on the Massachusetts coast right now?
Buoys off Massachusetts are reporting 1 to 16 knots, the strongest at Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. A knot is 1.15 mph, so 20 knots is about 23 mph. Wind measured offshore is usually stronger than the same wind felt in a harbor.
How rough are the seas off Massachusetts today?
The highest seas measured right now are 6 ft off Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, out of the 13 of 13 Massachusetts zones with a wave-capable buoy nearby. Seas are significant wave height, the average of the highest third of the waves, so individual waves run noticeably higher than the figure.
Who issues the marine forecast for Massachusetts?
The National Weather Service, from its Boston/Norton, MA office. Each of the 13 zones on this page gets its own bulletin in a legacy teletype format, reproduced here in full underneath the charts and the live buoy readings.