For best direction i say side-shore wind. But in summertime is the wind comming from NO, so it's onshore there. But the coastline is straight and the water isn 't deep overthere. And you can kite straight on for 10KM. Isn 't so bad...
Well....for my Opinion the northeast wind is the best for this spot.
NW is freaking Gusty!
The Spot in the summer time you count on termic winds...mostly north or northeast winds.
But in the summer you have the Normal beachpeople problem...they call the Cops right away if you pass to much with your kite near the Shore...
Some days with 20-24 knots.You have a small wave you can play with and the break is not bad.
The Beach at self...Sucks,Dirty,small and smelly
In the summer the spot is packed full.....and the Locals....are quiet unfriendly and unpolite.
On the 15th of oktober you can go to all the beaches on this island for kiting....my favourite time for kiting on these islands is beginning from Oktober untill April.
But if you want to enjoy balearic beaches...go to Formentera......