Do you live in every area of every country in Europe, or just one that happens to not be hit by a heat wave? Because I'm in Norway, and the place has been melting for a while now. Here, heat wave is defined as five consecutive days with temperatures above 27 degrees, we've been getting 35 at times. Today's peak where I live was 30. The forecast currently indicates it might drop to 25-26 next week (which is still above normal for anything but a day or two across all of summer). Making it extra special, it has been hitting the entire country at once, something that's almost unheard of.
As for the general trend, the statistics point in one direction. The frequency of heat waves here have doubled compared to thirty years ago. Areas that have never before recorded a heat wave, are now getting them.
Thankfully, I have a heat pump, otherwise my life would have been utterly miserable for the past few weeks.