Southern California is for good reason surfing's second home after Hawaii and the base of much of the industry. Famously surfed by Duke Kahanamoku in 1915 these sunshine beaches hold numerous classic set-ups. The degree of swell exposure, to storms from both the North and South Pacific mean year-round swell. Summer is slightly less consistent but still excellent by most standards. In autumn and and early spring the Santa Ana wind brings weeks of offshore conditions. If these combine with south swells then Malibu and Trestles will fire whereas places such as Rincon require a more northerly swell.
These are either live cameras and video or a daily photo taken by a surfer. The former has the advantage of being up to the minute, the later is more likely to be taken to accurately reflect the current conditions - streaming video cams give the best of both worlds. Check the update date carefully.