Gloucester, MA to Portsmouth Harbor Inlet, NH map preview
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Gloucester, MA to Portsmouth Harbor Inlet, NH Marine Weather Route Forecast

Short coastal hop along the New England shoreline.

Latest Automated Forecast

Optimized for marine passage planning, vessel routing, and coastal or offshore weather tracking. This automated marine weather routing tool updates daily using premium data models. Below is the weather, wave, and ocean current layout for a standard vessel transit from Gloucester, MA to Portsmouth Harbor Inlet, NH.

Generated: 2026-07-28T11:20:12.017296+00:00 • Distance: 35.9 NM • Departure: 2026-07-28T08:00:00-04:00 • Speed: 6 knots
Time Wind Waves Ocean Current Air/Water
2026-07-28T12:00:00+00:00 5.0755958 kts 0.44 m 0.3 kts NW NW 20.2 / 18.8 °C
2026-07-28T16:00:00+00:00 8.9632862 kts 0.66 m 0.4 kts NNW NNW 17.8 / 17.8 °C
Locked forecast rows are available to signed-in users.

Route Passage Summary & Sea State

Expect a majority of reaching conditions with steady motion. Winds range from 4 to 9 kts with waves 1.4 to 2.2 ft with period of 6 to 7 seconds. Overall, periods of cross-seas may create some roll. Wind angles: 33% following, 67% reaching. Sea state: 33% aligned, 67% cross-seas.

Historical Forecasts Download GPX File

Related Routes

Portsmouth Harbor Inlet, NH to Gloucester, MA
35.9 NM 8 waypoints
Gloucester, MA to Cape Cod Canal, MA
50.2 NM 5 waypoints
Gloucester, MA to Cape Cod, MA
47.3 NM 7 waypoints
Gloucester, MA to Provincetown Harbor, MA
46.7 NM 7 waypoints

Navigation Responsibility

This forecast is for informational purposes only. You are responsible for your own navigation and safety at sea. Always verify weather conditions with official sources, maintain a proper watch, and exercise prudent seamanship. Do not rely solely on this forecast for critical navigation decisions. See our Terms of Service for full details.