I guess it's the humidity that's the killer? 90F doesn't sound too bad for a few days. EDIT: This heat index (https://en.wikipedia.org/wiki/Heat_index https://

I guess it's the humidity that's the killer? 90F doesn't sound too bad for a few days. EDIT: This heat index (https://en.wikipedia.org/wiki/Heat_index https://en.wikipedia.org/wiki/Heat_index) puts 90F (32c) at 90% as equivalent to 122F (50c), in which case I can see the problem!