Some time between May and September I'd like to ride up Highway 1 from LA to San Fransisco over the course of a few days. I'm looking for a time of year when the fog and tourists would be minimum. Does that rule out mid summer? When is the fog the worst? Or is it completely unpredictable? After getting to SF I'll be cutting east to go through Yosemite and down to Death Valley possibly. Any advice is appreciated, thanks!