High humidity will keep air temperatures low. If you want to compare cities in different biomes, it would be better to look at heat index values. I'm showing Ahvaz at 10% relative humidity right now, so the air temperature will be close to the heat index. In Houston, the air temperature can be 100, but with 50-60% humidity factored in, the heat index could top 122.

[–] fiat_lux@kbin.social 2 points 1 year ago

I struggle to find much difference between 42°C dry vs 35°C wet in terms of personal coping ability, for sure. Dry heat would always be my preference.

I think it's worth noting as well that in the article it lists 42°C as the temperature humans start to have things go wrong with their bodies. Both Texas and Iran are dangerously close to semi-regular 42°C, no matter the humidity. We're going to see lots of blue-collar workers forced into retirement, or worse, around the world pretty soon.