It depends on the coast, but generally, winter means powerful groundswells for west-facing shores, while summer brings tropical swells to east coasts. You gotta know your seasons! For Indo, it’s dry season (April-October). For Hawaii, the North Shore goes off November to February. Use swell forecasts and talk to salty locals. Remember, bigger isn’t always better—know your ability. Sometimes a clean, head-high day is more rippable than a closing-out double-overhead monster.