Since I don't have to commute with my bike I never needed an outdoor sun/weather cover but in the garage, just to keep the dust off, I use an old king sized flat bed sheet draped over the bike.
BTW, you must live in a different part of SoCal than me (near Disneyland) because the average SUNNY days here number 275 to 285 a year.
2013 Honda NC700X-D (Red of course) # 100345
2014 Red NC700X - Givi FZ1111, Shad Comfort Seat, Moose Racing 47L Expedition Trunk, Barkbuster Storm, Adjustable levers, Denali Light Bracket, generic LED driving lights
"Not sure what impact sun would have on the NC700X but would you park in the shade? My bike is parked inside the garage when not commuting."
The sun will destroy the plastics. My Old GL1200's plastic was disintegrating because of it. My bike sits in a parking lot for 12-13 hours a day while I'm at work and I'd bet the black plastic bits will be breaking off in 20 years or less, if I didn't protect it.
I have the Kwikover like Fuzzy. No matter what sun protection you use, it's worth it.
UV is very harmful to everything. I will not let my bike sit in the sun over 1 hour w/o its cover.
I've been using the silver Dowco Guardian Ultralite in LG for over 25 years. They last forever are UV proof waterproof and pack small.
Out of sight out of mind security blanket.
Dowco Guardian Ultralite Motorcycle Cover - Cycle Gear
Years ago I bought a Honda accessory cover that fell apart within a year. UV killed it.
These Dowco are tough and do last forever.
If you ride your bike a short distance to work then I could see wanting to cover it while you are working.
However, if you go on longer rides your bike is in the sun the whole time (unless of course it is raining) so what difference does it make.
With all of that said I will say that my 2012 has some considerable fading on the blinker housings and the plastic parts of the controls.
It only had 2113 miles on it when I bought it a month ago so I suspect most of the damage is from sitting outside a lot rather than riding a lot.