Semaphore South Swell ForecastAustraliaSAAdelaideSemaphore South1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIISemaphore South swell forecast issued today at 12:41 am. Next forecast at approx. 12:41 am.Get WillyWeather+ to remove ads