Basic downhill snowboarding - not really as you are never holding one edge the same as you are in kitesurfing. Basic board skills and stopping are the only similarities I can think of. Snowboarding in powder has similar weight distribution over the board. Groomed piste - then you have your weight a lot more on the front foot when snowboarding than when kitesurfing.
Snowkiting with a snowboard does help with kitesurfing. As has been stated starts are similar, but easier on snow and you edge against the kite the whole time, same as kitesurfing. Main difference is that you can go upwind with no speed, as opposed to kitesurfing when you need a certain ammount of board speed before turning to track upwind.
My advice - pack a kite and harness with you, then as you are there for the whole season, go and find some open area to practice with the kite and board!