Cape Mendocino Swell ForecastUnited StatesCAHumboldt CountyCape Mendocino1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIICape Mendocino swell forecast issued today at 3:45 pm. Next forecast at approx. 3:45 pm.Get WillyWeather+ to remove ads