I'm in San Diego, and would have to modestly describe golf here as damn near perfect. And with due respect to the poster who described Los Angeles as golf mecca, I lived in LA for 20 years and there is no comparison - San Diego kicks LA's butt in golf! I actually gave up golf in LA for a few years because it was pretty frustrating with the tough-to-get tee times, painfully slow rounds, and brutal traffic to/from the course, but I rediscovered golf in SD when I found out how much better it is here.
Our weather is probably the most agreeable of anywhere in the US. Golf is easily year round, with summer highs being moderate enough to play in the middle of the day without being sweltering, and winter lows being comfortable enough to play in a light sweater or wind shirt. We do get a bit of a rainy season, usually in February, but it rarely affects golf.
There is plenty of course variety. There are about 60 courses within a 30-40 minute drive from almost anyplace in the city, and if you want to extend the drive to an hour you'll find another 20-30 courses. And Palm Springs isn't too far away, about 90 minutes. Courses include a fair number of cheap and very family friendly courses, a lot of good mid priced nice courses, and some really nice semi-private upscale courses which aren't too unreasonably priced. And if you're interested in private clubs, they range from kind-of-reasonable places up to very exclusive and expensive clubs. We have courses that have hosted PGA, LPGA, and Nationwide tournaments, and of course there's our US Open venue at Torrey Pines which is available to anyone (and if you're a resident the cost is almost cheap, even with the price hikes the last few years).
Ease of access is great. At most places you can call a day or two ahead and still get a decent time on the weekend, and if you're a midweek golfer you can pretty much play whenever and wherever. And pace of play is usually pretty good, ranging from speedy at some of the more upscale courses to only slightly annoyingly slow (like Torrey on a Saturday mid-day). And unlike our friends in LA, getting to and from the course is usually a breeze - for the most part our freeways here move pretty well.
The main downside here is the cost of living which by most comparisons is very high, especially housing. But again compared to our LA friends, San Diego is a bargain. When we moved here from LA our realtor was advising us how expensive housing was in San Diego, and I think we kind of insulted her because we were used to LA prices and would sort of laugh and ask "Is that all?" when she'd tell us the prices of the SD properties. Other downsides are a dysfunctional city government, occasional brush fire season, a MLB team that typically sucks, and an underachieving NFL team. But all are a small inconvenience to put up with compared to the real golf mecca of California!