Manse Bay Swell ForecastUnited KingdomOSOrkney IslandsManse Bay1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIIManse Bay swell forecast issued today at 5:51 am. Next forecast at approx. 5:51 am.Get WillyWeather+ to remove ads