Sapelo Sound, Blackbeard Island, GA to St Catherines Sound, GA map preview
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Sapelo Sound, Blackbeard Island, GA to St Catherines Sound, GA Marine Weather Route Forecast

Georgia coastal route; shoal-sensitive, requires good visibility.

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 Catherines Sound, GA.

Generated: 2026-11-04T10:46:28.036013+00:00 • Distance: 19.6 NM • Departure: 2026-11-04T08:00:00-05:00 • Speed: 6 knots
Time Wind Waves Ocean Current Air/Water
2026-11-04T13:00:00+00:00 7.3434152 kts 0.64 m 0.1 kts N N 23.2 / 21.6 °C
2026-11-04T16:15:38.197079+00:00 9.9352088 kts 0.84 m 0.3 kts SE SE 22.1 / 21.5 °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 7 to 10 kts with waves 2.1 to 2.8 ft with period of 5 to 6 seconds. Overall, wind and waves mostly aligned or partially aligned. Wind angles: 100% reaching. Sea state: 100% aligned.

More Detail

Points of Sail

CategoryPoint of SailWind AnglePortion of Passage
On the NoseNo-Go Zone0–45°0%
ReachingClose Hauled45–80°50%
ReachingBeam Reach80–110°0%
ReachingBroad Reach110–145°50%
FollowingRun145–180°0%

Sea State & Wave Motion

Sea StateWind vs. WavesBoat MotionPortion of Passage
AlignedWaves run with the windSteady, organized100%
Cross SeasWaves cross the windRolling0%
OpposedWaves against the windChoppy, confused0%
Historical Forecasts Download GPX File

Related Routes

St. Catherine's Sound, GA to Sapelo Sound, Blackbeard Island, GA
19.6 NM 11 waypoints
Sapelo Sound, Blackbeard Island, GA to St. Simons Sound, Brunswick, GA
34.2 NM 7 waypoints
Wassaw Sound, GA to St Catherines Sound, GA
23.2 NM 9 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.