Government Cut, Miami, FL to Charleston Harbor, SC map preview
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Government Cut, Miami, FL to Charleston Harbor, SC Marine Weather Route Forecast

Major offshore passage using the Gulf Stream; big-window leg requiring stable weather.

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 Government Cut, Miami, FL to Charleston Harbor, SC.

Generated: 2026-07-21T11:19:37.362593+00:00 • Distance: 433.2 NM • Departure: 2026-07-21T08:00:00-04:00 • Speed: 6 knots
Time Wind Waves Ocean Current Air/Water
2026-07-21T12:00:00+00:00 15.982727200000001 kts 0.66 m 0.7 kts N N 29.5 / 31.4 °C
2026-07-21T16:00:00+00:00 13.7689035 kts 0.66 m 3.5 kts N N 29.7 / 30.4 °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 6 to 16 kts with waves 1.6 to 3.5 ft with period of 4 to 6 seconds. Overall, wind and waves mostly aligned or partially aligned. Wind angles: 45% following, 55% reaching. Sea state: 60% aligned, 40% cross-seas.

Historical Forecasts Download GPX File

Related Routes

Charleston Harbor, SC to Government Cut, Miami, FL
425.8 NM 9 waypoints
Government Cut, Miami, FL to Beaufort Inlet, NC
598.1 NM 9 waypoints
Government Cut, Miami, FL to Bimini, Bahamas
42.9 NM 6 waypoints
Government Cut, Miami, FL to Ft Pierce Inlet, FL
109.7 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.