I could see Singapore building an air conditioned dome over the whole city. Besides the nonfree press, etc, the relentless heat and humidity is the biggest negative of the city.
By the time they build it, it won't just be for aircon, but also to purify the air coming in from outside. It'll also be nice to do without the rain. Singapore with a dome is probably what the first moon bases will look like.
I was talking to a shopkeeper, who apologized for "the bad weather". I said, yes, is it always this humid? She looked at me blankly. "Oh, this isn't humid; I meant the rain."
Now I'm uncomfortable in temperatures lower than 28C (84F)
I've lived in Singapore (almost) all my life, and the average temperature/humidity feels a lot higher as compared to when I was younger.
It's not easy to survive without AC, and most middle-class households here will consider it a necessity.
Inside and Outside
You will find that locals will have subtly learned the art of avoiding the worst of it - i.e. avoiding walking outdoors in the middle of the day, and also walking along the side of the street that is in more shade from buildings etc.