Was down last year in August and will be heading down this year as well. I stay in Duck on OBX.
Fishing inshore that time of year is tough. Water temps are high and the bite is sporadic at best. Both in the sound and ocean front you can expect a mix bag. Flounder, snappers, croakers etc.
Miss Oregon Inlet in Nags Head is headboat. Expect the same as fishing off the surf, small fish, but if you have kids, they will have a ball.
Best bet is to do a makeup charter. Stop in at Bobs Bait and Tackle in Duck. Get your name on a list for charters your first day there. They will set you up with other people to fill a six pack charter for an offshore run. In August you can expect decent Mahi bite along with billfish trolling.