Although you normally have the winds at your back heading the pacific coast north to south, that is not always true. Last summer was a little odd in that it was a colder summer for many years and the winds from San Fran through a good part of Big Sur were headwinds while riding south. Monterey Bay had particularly strong headwinds in late August.
Remember that not all State campsites have hiker/biker camping. The price ranged from $6 to $12 with the higher cost in the southern half of the route.
__________________
Land of the Free, Because of the Brave.