Portland Bill Lighthouse Swell ForecastUnited KingdomSWDorsetPortland Bill Lighthouse1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIPortland Bill Lighthouse swell forecast issued today at 6:50 pm. Next forecast at approx. 6:50 pm.Get an account to remove ads