fyi - PCH only exists in the Los Angeles area. In northern California, the highway has different names, but most locals just call it State Highway 1 or California 1.

Weather is very erratic along the California coast. It can be sunny for weeks at a time during the winter, then rain every day for a week. If you're flexible, the weather people are pretty good at predicting these patterns several days in advance.

Don't know if it is global warming or something else, but the rain season seems be shifting in California. When I was little, the rain season would regularly start in October or November. Now days, we don't get regular rain until late December. Most reliable rain is now Feb-March.