You are right, it never gets warm or dry, especially on the West side of the island. The east side is a little better, but certainly not warm. August is the warmest and driest month that I have experienced. Even then, you are going to want to have a light jacket at night, preferably a waterproof one. Days are jeans and long sleeved shirts.

The best month? The month that you can go to this beautiful place with the friendliest people around.

Go, stay sort of dry and have fun!!