I haven't been down there since March, but the sensor at Oregon Inlet Marina is reading 71.1 deg F.
There are tons of places on the sound side. Lots of opportunities for downwinders. http://locations.splocs.com/kitesurf/country/North-Carolina-USA.html
Kitty Hawk Kites lets you ride there and they have air hoses to pump your kites. The launch is a little sketchy. You stand in the water and someone stands up on the dock/bulkhead with your kite, so you are one line length away from a 6 foot wall. Also one line length downwind to your left is a rock jetty. It is really shallow though, so beginners can have someone walk away from the land to launch their kites.
Most of the soundside launches are pretty narrow, but again, you can walk out because it is so shallow. Kite point is a little wider in one spot, but I don't think you can go there anymore unless you buy the offroad permit. You used to be able to park on the road and walk out to the beach, but last time I went by there were a bunch of no parking signs.