If you're here having a research because you're visiting LA, then let me tell you straight off the bat: I'm jealous. And really upset. If you're in need of an irritating little meatball to hit LA with, then I am available for hire. Will link my email.
All jokes aside, LA is a really unreal place. It's not somewhere that everyone overhypes and that movies make look way cooler than it is - it's worth all the hype and more (even in the rain). There's no shortage of sun (except for the first 3 days of my trip anyway), an abundance of cool places to eat, beaches you can chill on at the weekends and you'll never need to wear more than 3 layers at most - sold yet?!
There is so much to do here that 7 days simply isn't enough if you want to do LA right. It does mean that a second trip is always warranted though, so below I've done all the hard work for you so you can sit back and relax reading through your new itinerary, including rare rainy day suggestions if you happen to be one of the unlucky chosen ones.