Singapore is not mentioned in the wiki article on wet bulb temperature.
And given that the maximum ever temperature in Singapore is 35-36 for most months, I doubt that a wet bulb temperature of 35+ is common.
When I visited Singapore most people retreated indoors to the AC from about 2:30-4:30 every afternoon. I don’t recall the exact temps then but the idea that everyone would be just fine in a severe heat wave leading to power grid outages is false.
When I visited Singapore most people retreated indoors to the AC from about 2:30-4:30 every afternoon. I don’t recall the exact temps then but the idea that everyone would be just fine in a severe heat wave leading to power grid outages is false.