Due to the coastal geography of Long Bay (SC) and Onslow Bay (NC) we get some incredibly strong seabreeze boundaries pretty much every day from mid-late April through about the first week of August. Once the shelf waters warm up enough they reduce quite a bit. I'm talking 20 mph or more sustained as it roars inland past I-95. The seabreeze effect isn't anywhere near as strong further up in NC and further south into the lowcountry of SC and GA.
A neat thing is due to the shape of the coast there's a convergence zone right around Bolivia, NC where the boundaries collide. That area is almost guaranteed a seabreeze generated storm during the summer.