I use the Buoy Weather App. Same people who developed Surfline for swell, wind, etc., and the gold standard in the surfing world.
I have to say BW has let me down a few times, and I have taken a pummeling when it called for calm wind/swell. But, it appears they draw most of their data from NOAA, and other gov sources, and package it in a more user friendly interface so I am not sure how much blame they can get for inaccurate forecasts.
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