How does one keep cool during the summer months without air conditioner?

How does one keep cool during the summer months without air conditioner?

How does one keep cool during the summer months without air conditioner? I live in a brick apartment on the third floor with no AC. We have a ‘cooling system’ but it rarely cools our apartment. Last year the apartment was rarely less than 90 degrees. Living in Arizona weather can rise to 150 degrees. My apartment is a 450 sq ft studio with a sliding door. There are no small windows that I can set up an AC. So what are my options to make this space livable this summer?
My room :D

My room :D

Weed ID Please

Weed ID Please

hydrangeas make lovely dried bouquets

hydrangeas make lovely dried bouquets

My Room!

My Room!

life in the midwest.

life in the midwest.

Americanized room in Osaka

Americanized room in Osaka