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

Popular offshore route.

Latest Automated Forecast

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Generated: 2026-05-05T10:52:44.824442+00:00 • Distance: 69.8 NM • Departure: 2026-05-05T08:00:00-04:00 • Speed: 6 knots
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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.