I feel for you humid summer living Southern Boys! I lived in Mississippi for two years......I moved.
Now I live in NW New Mexico, and last week it was a dry 110, but today is an also very dry 88 degrees. Evaporative Cooler is cheap and cool. Lots of folks here are replacing them with expensive to buy and expensive to run AC units, but for only 2 humid weeks in August, not worth the expense to me. Slamfire is right, the more humid it is, the less effective evap coolers are, but they are still better than just fans. Next week it'll be in the 100's again, but at least here, evening and nights are cool in N. New Mexico. Open screened windows alone is comfy, with a paddle fan over the bed.....and each of my bedrooms has one.
Home Depot carries little evap. coolers for $40, no bigger than a basket ball, and a guy I know with his refrigeration broke down like AJC1, and waiting for parts, bought one, put it next to where he sits and where he sleeps, and told me it was a gift from heaven during the heat last week.