Savannah River Mouth Swell ForecastUnited StatesGAChatham CountySavannah River Mouth1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIISavannah River Mouth swell forecast issued today at 12:46 am. Next forecast at approx. 12:46 am.Get WillyWeather+ to remove ads