Winters in LA or LA
You... I like you.
Also, you're sliiiightly overstating how little you can do in the summer hot times. It's not a "risking your life" scenario every time... Recreation just switches to an early morning or post-sundown schedule. I usually still get 3-4 hours of sports activities on a saturday or sunday. Plus you get fun things like all the animals that are crepuscular being out and about, so you'll have ospreys flying over your heads with a fish, or squirrels doing races around the fencetops.