Old Mill Bay Swell ForecastUnited KingdomSWDevonOld Mill Bay1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIOld Mill Bay swell forecast issued today at 12:50 am. Next forecast at approx. 12:50 am.Get WillyWeather+ to remove ads