Your best bet is to come here in the fall/winter as it's less crowded and highway 98 is less used. Not only that its cheaper also and not as miserable outside.

Your trip may be ruined if you come in august as it's the height of the hurricane season + the forecast will call for a good chance of rain every day. I'm thinking about setting up a weather station here so you can observe and decide for yourself in real time when it's the best time for you folks to come down here.

Rob

http://www.robfwb.com