Forecasts use complex models analyzing wind, swell data from buoys, and satellite info. Sites like Surfline or Magicseaweed are pretty dialed, but they’re not crystal balls. Learn to read the basics yourself: swell direction, period, and local wind. A long-period swell from the right angle for your spot is the golden ticket. Over time, you’ll start to match the forecast to what you see on the beach, becoming your own best forecaster. It’s part science, part local knowledge.