Skateboarding is not really like snowboarding. Surfing is more similar to snowboarding. Except it doesn’t hurt as much when you fall in the water.
Skateboarding is also much harder than snowboarding.
The only thing that is sort of similar is if you’re just riding flat based and straight, then you might be able to apply some balance that you have already gotten from skateboarding…like moving “sideways” while not tipping over. That’s about it. But this type of riding is usually only when you are pretty decent already, because in reality, the snow is bumpy and a small jerk can send you catching an edge if you aren’t used controlling the board.