Cuttyhunk, MA to Block Island, RI map preview

Cuttyhunk, MA to Block Island, RI Marine Weather Route Forecast

Scenic, approximately 30-nautical-mile offshore transit that crosses the mouth of Buzzards Bay and the Rhode Island Sound, linking the outermost Elizabeth Island to the "Bermuda of the North."

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 Cuttyhunk, MA to Block Island, RI.

Generated: 2026-09-11T10:34:21.352708+00:00Distance: 37.0 NMDeparture: 2026-09-11T08:00:00-04:00Speed: 6 knots
Time Wind Waves Ocean Current Air/Water
2026-09-11T12:00:00+00:00 8.693307700000002 kts 0.84 m 0.5 kts NE NE 20.1 / 20.5 °C
2026-09-11T16:00:00+00:00 3.9956818000000003 kts 0.74 m 0.1 kts E E 23.3 / 21.0 °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 13 kts with waves 2.4 to 3.9 ft with period of 5 to 6 seconds. Overall, seas and wind frequently opposed, expect confused motion. Wind angles: 67% reaching, 33% on the nose. Sea state: 33% cross-seas, 67% opposed.

More Detail

Points of Sail

CategoryPoint of SailWind AnglePortion of Passage
On the NoseNo-Go Zone0–45°33%
ReachingClose Hauled45–80°33%
ReachingBeam Reach80–110°33%
ReachingBroad Reach110–145°0%
FollowingRun145–180°0%

Sea State & Wave Motion

Sea StateWind vs. WavesBoat MotionPortion of Passage
AlignedWaves run with the windSteady, organized0%
Cross SeasWaves cross the windRolling33%
OpposedWaves against the windChoppy, confused67%

Related Routes

Block Island, RI to Cuttyhunk, MA
37 NM 7 waypoints
Nantucket, MA to Block Island, RI
69.8 NM 11 waypoints
Onset Harbor, MA to Block Island, RI
58.6 NM 22 waypoints
Beaufort Inlet, NC to Block Island, RI
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