Another heat-hater here. The issue with heat, as opposed to any other 'bad' weather, is that in the UK we are just not set up to cope with it.
If it rains, stay inside or wear a raincoat or use an umbrella or whatever.
If it's cold, stick on a big jumper and get under a blanket or thick duvet or (if going outside) put on a massive coat, scarf, gloves, hat etc. And/or turn on the heating: most of us are lucky enough to live in houses with at least vaguely functional heating systems.
What we DON'T have is the infrastructure to cope with heat. Our houses get hot, and there's no way to cool them down. Going outside doesn't help if the sun is blazing down. Many of us don't work in air-conditioned offices/shops etc, so going to work is no respite either. We lie in 30 degree bedrooms that won't cool down even overnight, sleeping naked under thin sheets, except we're not sleeping because IT'S TOO FUCKING HOT. And then we're exhausted, and the next day of oppressive heat is too much to bear.
Yes, some of us like the heat. Some of us don't easily overheat. But the rest of us - including the perimenopausal, the overweight, those on meds that make them heat sensitive... well it just becomes unbearable very easily.
If all of our houses and workplaces had basic air conditioning systems, in the same way that all of our houses have at least basic heating systems, summer would be much less difficult and far more enjoyable!
Oh, and somewhere to exercise dogs without them overheating would be great... indoor air-conditioned dog parks, maybe? Because when you're already massively struggling to cope and already getting bugger all decent sleep, having to take an energetic young dog out at 06:00 and 23:00 is an absolute killer. You can do a gentle doggy walk at 08:00 and 20:00, but if your dog needs to RUN then you have to basically do it at night. 🤣 Not that there's much night, because it's still light outside at bedtime and gets light long before you want to be awake!
Roll on autumn, and winter... I honestly prefer cold, rain, wind and darkness over the current weather. I think I need to move to the northernmost part of Scotland (although then the short nights and never-ending daylight would be even worse... sigh.)