Kapalua is windy for sure during the winter. I don't really think of the North Shore as being windy, though I certainly have been in some heavy winds on all parts of the island, but to me its not like Kapalua.
What is the best month to visit Princeville Kauai?
You can never go wrong with a trip to beautiful Princeville. If you can plan for it, avoid the biggest crowds, heaviest rains, and highest prices and come in the spring (April to June) or early fall (September to November).