Summer is the best time to head to the beach, but being there in the spring is also a great option. I find that going to a place where there are too many people just ruins a vacation for me. I'd rather go off-season or not at all instead of going in high-season and then trying to jostle even for standing space.
Beach vacations are great all year round in many locations but some like these long term Outer Banks beach rentals are a good option for spring time visits, as they will just make you love the beach more and will make you feel part of it more than just if you were to visit in just the usual high-season. There is something wonderful about going to a place when very few tourists think of visiting that make you feel more special and more a part of the place. I like that feeling.