Caldwell Island Swell ForecastUnited StatesMEKnox CountyCaldwell Island1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIICaldwell Island swell forecast issued today at 1:44 am. Next forecast at approx. 1:44 am.Get WillyWeather+ to remove ads