Trained in hotter (and more humid) in Brazil (was 44C outside, fuck knows what inside) , kind of liked being warm and sweaty just doing weights. They had a fan in one corner which made it bearable if you walked there in between sets.
Have a funny pic of me being dwarfed there by a guy who was 6ft4 and must've had 22" arms and a guy who was 6ft8. Dumbells in gym only went up to 28kg, black genetics of peace.