Idioms are our friends!
"It is too hot at night"why is this sentence .wrong
That would have been "Fa troppo caldo"
I'm still confused by what "Fa" is being used here...
Well, I guess that when you want to say it's cold or it's hot; it's just structured like it makes hot or it makes cold in italian. It's the same in french "il fait froid/il fait chaud"