I can’t tell you what it is, because I don’t understand it either, but it’s not that. I’m Honduran, I do spend most of my day with AC. I primarily dress in shorts and breathable clothing. I also see all sorts of people heavily overdressing for the climate, who most definitely don’t have AC most of their day. Things got VERY hot during this time, so I have no idea how people are tanking their way through it. I do know that it feels like I stand out by simply wearing shorts and sandals, even though I really shouldn’t.
Temperatures did hit mid 40s, with temperature sensations breaking the 50c mark. You could stare directly at the sun without any eye protection and be perfectly fine due to how thick the atmosphere was due to the heat dome; a street lamp was probably more intense. It’s just now starting to fade, but it’s still hard to breathe outside some days.