I lived in the San Diego area for two years; I totally get it. However, I truly LOVE having Four Seasons. Hard for a Midwestern Gal to lose that feeling.
Beau’s brother is a retired AF Pilot; they’ve lived in San Diego proper for 30+ years. His only complaint is that he can’t grow decent tomatoes with the weather always being 72 and Sunny. Maybe he just has a micro-climate where he is, though tomatoes DO like a lot of HEAT.
The only type of tomatoes I’ve had any luck with are cherry tomatoes - which come up often as volunteers and are super sweet. My brother has good luck with heritage tomatoes, he is a super gardener and uses raised beds - does soil amendments, etc., IOW, a lot of work.
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My uncle gave up trying to grow large tomatoes in the Santa Barbara area - he always thought it was from a lack of humidity that tomatoes don’t do well in this area.