Yeah, I remember, back when I had traveled to The Netherlands quarterly on business. I stayed (compliments of, and specified by, my company) in a four-star hotel in Rotterdam.
Back in 2005, those hotel rooms were not air-conditioned.
During one visit, the air temperature was in the mid-90's. Something that Rotterdam had not seen before.
Needless to say, my hotel room was brutally hot.
In subsequent visits to that hotel a couple years later, I noticed the hotel was replacing all its old windows with new double-pane windows and was installing an air-conditioning system.
Yeah, Europe does not seem to be accustomed to hot weather.
And, fwiw, I found the folk of The Netherlands to be an awesome people. So happy. Even when I was taken into the countryside by my Dutch business associates.
Everybody seemed to be so happy.