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

Charleston Harbor
S Santee to Edisto Beach out 20 nm
Edisto Beach to Savannah out 20 nm
Savannah to Altamaha out 20 nm
Savannah to Altamaha 20-60 nm
Cape Fear to 31N to 1000 fm

Lake Moultrie

NOAA WaveWatch Model

Wave Forecasts

NOAA WaveWatch model forecasts of wave height/period

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

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


NWS Charleston Products

Additional Information