Don't forget to go to Shacks near Isabella when you're in PR ( unless the waves are tooo big
), Otherwise Ocean Park and Isla Verde are also nice this time of year with not as big waves ( only 5-6 footers instead of 8-12 foot ) . Wind should be NE 15-20 kts on the northshore.
Here is the kiteshop to visit on the island
http://www.velauno.com/index.html
Have fun!