From my personal experiences driving around and living on the Norcal coast, Fort Bragg is unusual for the amount of sunshine hours on the California Coast. I'm trusting the weatherspark data could be wrong, but it lines up with how I felt the climate and the types of plants I could grow. Citydata seems to not let me post with the images, heres a link to the Fort Bragg weatherspark:
https://weatherspark.com/h/y/364/202...-United-States
Here are some other coastal cities in California; notice that many of them have the distinct June Gloom and passing rainy weather in the winter. Scroll down to the cloud cover chart you'll see they are more cloudy generally than Fort Bragg.
https://weatherspark.com/h/y/357/202...-United-States
https://weatherspark.com/h/y/1042/20...-United-States
https://weatherspark.com/h/y/1727/20...-United-States
What could cause this rare sunny hole? It's not that close to the yearly subtropical high and warm oceans that cause SoCal weather, it's nearby the redwood curtain and Lost Coast where it dumps rain, and the coast ranges should cause some orographic lift assuming the air is humid enough which it should if it rains a few hours north.