Block Island, RI to Nantucket, MA map preview
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Block Island, RI to Nantucket, MA

Popular offshore route.

Latest Automated Forecast

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Updated daily with ECMWF data for Block Island, RI to Nantucket, MA. This page shows the latest forecast snapshot, route distance, waypoint count, and the first forecast points so search engines can read meaningful route-specific content without JavaScript.

Generated: 2026-06-04T10:35:03.040016+00:00 • Distance: 69.8 NM • Departure: 2026-06-04T08:00:00-04:00 • Speed: 6 knots
Time Wind Waves Temp
2026-06-04T12:00:00+00:00 9.8812131 kts 0.52 m 17.4°C
2026-06-04T16:00:00+00:00 11.3930927 kts 0.68 m 14.5°C
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Daily Route Forecast Summary

Expect a majority of reaching conditions with steady motion. Winds range from 6 to 19 kts with waves 1.7 to 2.4 ft with period of 5 to 6 seconds. Overall, periods of cross-seas may create some roll. Wind angles: 100% reaching. Sea state: 50% aligned, 50% cross-seas.

Historical Forecasts Download GPX File

Related Routes

Nantucket, MA to Block Island, RI
69.8 NM 11 waypoints
Block Island, RI to Cuttyhunk, MA
37 NM 7 waypoints
Block Island, RI to Atlantic Highlands / Sandy Hook, NJ
130 NM 10 waypoints
Block Island, RI to Beaufort Inlet, NC
1003.6 NM 27 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.