Surfside (Nantucket) Swell ForecastUnited StatesMANantucket CountySurfside (Nantucket)1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIISurfside (Nantucket) swell forecast issued today at 1:48 am. Next forecast at approx. 1:48 am.Get an account to remove ads