Charleston, SC to Fernandina Beach, FL map preview

Charleston, SC to Fernandina Beach, FL Marine Weather Route Forecast

South Carolina to northeast Florida, 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 Charleston, SC to Fernandina Beach, FL.

Generated: 2026-09-04T10:47:40.120490+00:00Distance: 161.3 NMDeparture: 2026-09-04T08:00:00-04:00Speed: 6 knots
Time Wind Waves Ocean Current Air/Water
2026-09-04T12:00:00+00:00 2.6457893 kts 0.58 m 0.2 kts W W 27.5 / 29.5 °C
2026-09-04T16:00:00+00:00 6.3174969 kts 0.78 m 0.4 kts NNE NNE 30.5 / 29.3 °C
Locked forecast rows are available to signed-in users.

Route Passage Summary & Sea State

Expect significant time on the nose, expect a more demanding trip. Winds range from 3 to 12 kts with waves 1.6 to 2.8 ft with period of 5 to 6 seconds. Overall, periods of cross-seas may create some roll. Wind angles: 38% reaching, 62% on the nose. Sea state: 25% aligned, 62% cross-seas, 12% opposed.

More Detail

Points of Sail

CategoryPoint of SailWind AnglePortion of Passage
On the NoseNo-Go Zone0–45°62%
ReachingClose Hauled45–80°38%
ReachingBeam Reach80–110°0%
ReachingBroad Reach110–145°0%
FollowingRun145–180°0%

Sea State & Wave Motion

Sea StateWind vs. WavesBoat MotionPortion of Passage
AlignedWaves run with the windSteady, organized25%
Cross SeasWaves cross the windRolling62%
OpposedWaves against the windChoppy, confused12%

Related Routes

Charleston Harbor, SC to St. Mary's Inlet, GA /FL and Fernandina Beach, FL
151.6 NM 7 waypoints
Fernandina Beach, FL to Charleston, SC
154 NM 11 waypoints
St. Mary's Inlet, GA /FL and Fernandina Beach, FL to Charleston Harbor, SC
151.6 NM 7 waypoints
Beaufort Inlet, NC to Charleston Harbor, SC
198.6 NM 6 waypoints

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