>>2845458Depends on what you want to do and what you want to see. Daytime temperature will be nice but it is likely to be wet; not a bad thing since it means that it will be a lot greener and the cold will keep the bugs more away.
The trails in the Ventana wilderness aren't maintained well and require a good amount of bushwhacking, but you'll be completely alone. Map out your water sources before you backpack.
The coastal highway tends to close on the regular due to landslides.
I day hiked Ventana Double cone last January and it was a miserable 32 miles, but the sunset and views were world class and I only saw two people near the trailhead by the end,