Coastal Waters Forecast for Charleston Harbor (AMZ340) (Text-Only)
NWS Forecast for: Charleston Harbor (AMZ340)
Issued by: National Weather Service Charleston, SC
Last Update: 224 PM EDT Fri Jul 17 2026


This Afternoon: S winds 10 kt.

Tonight: S winds 5 to 10 kt.

Sat: S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt in the afternoon.

Sat Night: SW winds 10 to 15 kt with gusts to 20 kt.

Sun: SW winds 10 to 15 kt with gusts to 20 kt.

Sun Night: SW winds 10 to 15 kt with gusts to 20 kt. A chance of showers. A chance of tstms, mainly in the evening.

Mon: SW winds 10 to 15 kt. A chance of showers and tstms.

Mon Night: S winds 10 to 15 kt. Showers likely with a chance of tstms.

Tue: SW winds 10 to 15 kt. A chance of showers and tstms.

Tue Night: SW winds 10 to 15 kt. A chance of showers and tstms.

winds and waves higher in and near tstms.

unless otherwise noted, waves 1 foot or less.

charleston harbor water temperature 86 degrees.







Zone Forecast: Charleston Harbor (AMZ340)

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