Oppressive is not the word for this. Phoenix is just one of the many locations globally right now dealing with terrible heat and extreme summer conditions. 
I’m sure there’s many places around the globe that are enjoying beautiful sunny beach weather but for the most part, it seems like everyone’s pretty miserable with the summer of 2023 
The temperatures are “very extreme,” said Matt Salerno, a meteorologist with the National Weather Service in Phoenix. “We’re talking 10 degrees above where they normally are.” The city set another heat record on Monday: eight consecutive days in which the overnight temperature never dipped below 90 degrees.
The heat is particularly brutal and inescapable at the sprawling homeless encampment in central Phoenix known as “The Zone.”
There are barely any trees and, this July, people have been suffering second-degree burns after they pass out or fall asleep on the hot asphalt and sidewalks.
There are few sources of running water other than donated bottles and portable wash stations. So a spigot outside a shelter often has a line of people pouring water over their heads and filling up five-gallons jugs to take back to their tents.
— Read on dnyuz.com/2023/07/18/in-phoenix-18-days-of-extreme-heat-with-no-end-in-sight/