San Diego has the perfect climate........ You'll certainly be impressed by that. It's also quite expensive by comparison, but you won't be there for too long, so not an issue.
Might I suggest that you visit the Hotel Del Coronado on Coronado island? That's where the film "Some Like It Hot" (Marilyn Monroe, Jack Lemmon, Tony Curtis) was filmed and it's a wonderful building. The open courtyard in the centre has a gorgeous tree (red blossoms, no idea what it is) that is its focal point and there are several eating places there that serve great food if you fell like splurging on a meal. There's also the San Diego Zoo which is well worth a visit, and the aerospace museum. The museum has an SR-71 Blackbird out front and its contents are definitely worth the price of admission.