Porth Howel Swell ForecastUnited KingdomWLGwyneddPorth Howel1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIPorth Howel swell forecast issued today at 12:49 am. Next forecast at approx. 12:49 am.Get WillyWeather+ to remove ads