NZ Surf/Snow

I'm planning a trip to NZ this June to surf/ride. I'm hoping that someone here can give me the scoops on how cold the water is on the North/South islands during those months, and whether or not the waves are good. Also, I'm pretty much a gaper on the snow (born and raised in Hawaii, with in-bounds experience at Baker, Crystal, and St. Anton), so where is the best place for me to ride pow-terrain that isn't ridiculously gnar?

Hook me up, and I'll do my best to get you waves next time you're in Hawaii (or at least help you stay out of trouble with Da Hui and Da Wolfpak;)