I'm planning a trip to Oahu at the end of May. They say average temps are about 80 degrees. The place I'm thinking about staying does not have A/C. Do you really need it? I've heard so much about the trades, but that will be an 80-degree breeze blowing in.
Also, any recommendations for local hangouts and places to visit that aren't really tourist-y? Haven't been to North Shore in 25+ years so I'm sure it's changed a lot. Very interested in hiking, biking, waterfalls, scenery.