30C isn't that bad if the humidity is low and you are in shade.

Heatwave from a few weeks ago had 70% humidity where I live. It's brutal with no AC to dehumidify.

Except for a large part of Europe, the relative humidity is quite high. So, they're suffering more than most. I say this as someone who once lived in a desert and is well accustomed to 40-50 C summers.