I know on Oahu, certain parts of the island are very dry while others are extremely wet. I haven't seen evaporative coolers on this island. They might be here,

I know on Oahu, certain parts of the island are very dry while others are extremely wet. I haven't seen evaporative coolers on this island. They might be here, I just haven't heard of anyone using or talking about them. Many people have older homes with jalousie windows and rely on the trade winds to cool their homes down.