I’ve lived on the beach for a year, lived down town for 2, and put 5 years working in point Loma.
San Diego beaches stink, no really they stink. The musty smell hits you like a ton of bricks when entering homes 1-2 blocks from the surf.
9 months out of the year the water is too cold to go in or fish in. I put a GPS on my boat because well, “in San Diego you have to run a radar or GPS because of the fog layer”
If your not socked in fog in the AM you have the coastal layer to deal with most of he day. I think living on the beach is not the ideal, but only a pipe dream that folks make up in thief heads. The reality is colder days and cloudy days that block out the sun.
2-3 months in the summer is prime… If your parking spot doesn’t get stolen. Living on the SD beach was fun for 6 months until reality set in. Its not the tropical paradise that people make up in thier heads.