First up, you’ll need to choose your location. Although California is famous for it's great weather year round, taking microclimates and weather trends into account when choosing your location is advised.
Want to Elope to the highest peaks in California? Keep in mind they will be under several feet of snow December through April. If you plan to trek Mt. Whitney or scale the backside of Half Dome, book your trip for July.
If you’re thinking of eloping in June, be aware that most of the Northern California coast experiences June Gloom, and a beach elopement in San Francisco during that time would likely be a foggy chilly affair. Schedule your Muir Woods or Half Moon Bay elopement for September for an Indian Summer that is sure to please.
In the Fall wildfire season can bring about air quality concerns to the entirety of California. But the interior areas tend to fare worse. If you’re eloping in October or November, aim for the moist coastal areas, like Lost Coast.
If you've always pictured your adventure elopement with golden hills or valleys in the background, elope in California June - October. If you see yourself standing in a lush green field with wildflowers, that'd require a trip in March or April.