Sonoma Coast State Beach Swell ForecastUnited StatesCASonoma CountySonoma Coast State Beach1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIISonoma Coast State Beach swell forecast issued today at 3:55 am. Next forecast at approx. 3:55 am.Get an account to remove ads