Cape May Inlet, NJ to Charleston Harbor, SC map preview

Cape May Inlet, NJ to Charleston Harbor, SC Marine Weather Route Forecast

Big offshore leg around Cape Hatteras; requires stable weather window.

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 Cape May Inlet, NJ to Charleston Harbor, SC.

Generated: 2026-07-21T11:02:13.172558+00:00Distance: 505.7 NM • Departure: 2026-07-21T08:00:00-04:00Speed: 6 knots
Time Wind Waves Ocean Current Air/Water
2026-07-21T12:00:00+00:00 12.742985200000001 kts 0.76 m 0.3 kts N N 25.3 / 23.8 °C
2026-07-21T16:00:00+00:00 14.6868304 kts 0.96 m 0.7 kts NNE NNE 23.9 / 23.5 °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 2 to 30 kts with waves 1.9 to 7.2 ft with period of 4 to 6 seconds. Overall, wind and waves mostly aligned or partially aligned. Caution: peak winds reach 30 kts — conditions may be demanding regardless of point of sail. Wind angles: 4% following, 35% reaching, 61% on the nose. Sea state: 78% aligned, 17% cross-seas, 4% opposed.

Related Routes

Charleston Harbor, SC to Cape May Inlet, NJ
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Cape Fear Inlet, Bald Head Island, NC to Charleston Harbor, SC
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Cape May Inlet, NJ to Absecon Inlet, Atlantic City, NJ
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Cape May Inlet, NJ to Barnegat Inlet, NJ
65.8 NM 7 waypoints

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