When I attended a conference in San Diego, the natives complained that the daytime temp was always in the 70s and they missed having four seasons. Don't know if it's true but I had no sympathy for them
Not true, there may be a week of temps up into the 90's in late August or early September. But you have to watch out for June Gloom. It's the worst weather possible. There are THIN CLOUDS on the coast line. I lived there for 8 years.