Orange soda.
With my third baby, she did not want to come out (in stark contrast to her sisters, who all seemed to want to give me about one hour of advance notice before getting born) and the midwife said, before trying induction, try castor oil, sometimes it will kick the labor on. Not a spoonful, no. A whole bunch. And don’t puke it out. I chased it with orange soda because I liked it but figured I could certainly manage without it.
Oh God. I couldn’t even look at orange soda without nausea for several years. And it didn’t even work, I still had to get induced!
I grew up without AC in Florida.
Sit in the shade with a fan, be still. If in the shade and a breeze, and not moving around, a pretty high temperature is comfortable.
Go to places with cold AC or to cold springs to get cold, it will last awhile after you leave.
If it gets cool at night, open your window at night to let in the cold air, close it in the morning to keep that air in for the morning. But once it heats up inside, you are better off with ventilation - open windows on both sides of the house and run fans, to move air throughout the house.
If it’s dry where you are (it doesn’t work here) get wet and let evaporation cool you. Even here you can get wet and stand naked in front of a fan you will get cold.
STAY HYDRATED.