Sapelo Sound, Blackbeard Island, GA to St. Simons Sound, Brunswick, GA map preview
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Sapelo Sound, Blackbeard Island, GA to St. Simons Sound, Brunswick, GA Marine Weather Route Forecast

Georgia coast passage prone to shifting shoals; favor deeper water offshore.

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 Sapelo Sound, Blackbeard Island, GA to St. Simons Sound, Brunswick, GA.

Generated: 2026-07-21T11:22:07.513714+00:00 • Distance: 34.2 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 9.179269 kts 0.66 m 0.5 kts NNE NNE 29.7 / 31.1 °C
2026-07-21T16:00:00+00:00 18.196550900000002 kts 0.74 m 0.4 kts NNW NNW 29.1 / 31.3 °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 9 to 18 kts with waves 1.7 to 2.4 ft with period of 4 seconds. Overall, wind and waves mostly aligned or partially aligned. Wind angles: 67% reaching, 33% on the nose. Sea state: 67% aligned, 33% cross-seas.

Historical Forecasts Download GPX File

Related Routes

St. Simons Sound, Brunswick, GA to Sapelo Sound, Blackbeard Island, GA
34.2 NM 7 waypoints
Sapelo Sound, Blackbeard Island, GA to St Catherines Sound, GA
19.6 NM 11 waypoints
St. Mary's Inlet, GA /FL and Fernandina Beach, FL to St Simons Sound, Brunswick, GA
27.8 NM 7 waypoints
Port Royal Sound, Hilton Head Island, SC to St. Mary's Inlet, GA /FL and Fernandina Beach, FL
102.1 NM 9 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.