Amlwch Port Swell ForecastUnited KingdomWLIsle of AngleseyAmlwch Port1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIAmlwch Port swell forecast issued yesterday at 11:50 pm. Next forecast at approx. 11:50 pm.Get WillyWeather+ to remove ads