Here in the USA, south Mississippi, it's fucking hot as hell as well!
And unfortunately, we're borrowing my mom's car for now, waiting for a part we ordered for the truck to come in. Mom's car has 4 windows, but only the front passenger window goes down, and no air conditioner.. 🥵
I've taken to bringing a cooler with us, with bare minimum of 2 bottles of frozen fresh water, plus 2 bottles of frozen saturated saltwater.
Why frozen salt water? Well it's definitely not for drinking, that's for sure. But frozen saltwater freezes at like -10⁰C, which makes them excellent ice packs to keep things in the cooler extra cold for around 6 hours or so...