I live in Fortaleza, Brazil. Temperatures here are very stable along the whole year (78F - 90F, it rarely falls out of this interval).
I'm not advocating this no-AC model as a general solution though. I'm aware we're a bit lucky here. I used to live in Sao Paulo and temperatures vary more wildly there, sometimes within a single day.
Any temperate area on the planet will easily have 90-100 degree swings throughout the year. I used to live on the US East Coast and a summer high of 90-95 and winter lows of 0-5 were common my entire childhood. I moved to the midwest in the early summer and it hit 100 more than once, and it's been below 0 multiple times this winter already.
Yes, we get used to it, not unpleasant for me, at all.
But it changes the way you live. Compared with lives of friends from Europe, I notice that theirs has a bit more of a "structure" and predictability. E.g., hang out more in the summer, doing more reading and writing more in the winter.
I think I would enjoy that. Of course I could plan my life based in months instead of seasons, but it's not the same, especially considering that people around me wouldn't be following that same plan.
Consistent year-round temperatures is something I thought I'd want right up until I experienced it for a while. Turns out I like having the variety of seasons. I love snow, but not all year. I love the leaves falling, but not all year. I love Spring thunderstorms, but not all year. I even love 110F heat waves, but I'm glad when Fall arrives :).
I grew up in the Midwest and lived in SF and LA for a few years each. I definitely missed the seasons changing and appreciated them even more moving back to the Midwest. Lack of seasons really messed with my sense of time, like: "Oh that thing we did last month...oh woah that was six months ago??"
I live in Fortaleza, Brazil. Temperatures here are very stable along the whole year (78F - 90F, it rarely falls out of this interval).
I'm not advocating this no-AC model as a general solution though. I'm aware we're a bit lucky here. I used to live in Sao Paulo and temperatures vary more wildly there, sometimes within a single day.