What are the idioms to describe hot weather?

Umbrella height; The sun is like fire; The heat is unbearable and the summer is terrible; Jiao jinshuo stone; Flowing gold aragonite; Five cows crossing; May, July and June; Sweat turns into rain; Sweating; sunflower ...

July is full of fire and sweat.

The sun is like fire: sunlight is like fire. Describe the weather is very hot.

Unbearable heat: describes very hot and unbearable.

Chairs and mats are hot: Chairs and mats feel hot, which describes hot weather.