There some strains that claim to have superior anti-mold properties. AMS from greenhouse comes to mind first. I've also read reports that most mandala strains can be grown in pretty damp conditions. I don't know if you'll be growing in a foggy valley, though.
It sort of depends on how much light, and what sort of wind you get in your grow spot. As long as you stay away from strains of tropical origin, it should be OK.