National Weather Service United States Department of Commerce

NWS Charleston, SC is responsible for issuing routine forecasts for the nearby Atlantic Ocean off the southeast South Carolina and northern Georgia coasts as well as for Lake Moultrie in Berkeley County, SC. Non-routine products and services for the Atlantic waters include warnings for strong thunderstorms, advisories and warnings for tidal flooding, and beach/rip current forecasts (spring through fall).

 

National Data Buoy Center

Marine Observations

Various marine observations across the region

Local Observations Text Product
Local Water Temps

Text Forecasts

Nearshore Waters

Charleston Harbor
S Santee to Edisto Beach out 20 nm
Edisto Beach to Savannah out 20 nm
Savannah to Altamaha out 20 nm

Outer Waters

S Santee to Edisto Beach 20-60 nm
Edisto Beach to Savannah 20-60 nm
Savannah to Altamaha 20-60 nm

Charleston Harbor tide observation

Tide Obs/Forecasts

 

Charleston Harbor | Fort Pulaski

Upcoming Tides 
Find your Local Tides and Currents
Coastal Flood Event Database
Tidal Patterns of the SC Lowcountry & SE GA

Local Graphical Marine Weather Forecasts

Graphical Forecasts

Graphical forecasts depicting various marine weather elements

Enhanced Local Graphics:
Max Sustained Wind
Max Wind Gust
Max Wave Height

NWS Charleston Products

Additional Information