it's hot
It's hot in the room.
Durante los primeros días de agosto, hace calor.
During the first few days of August, it is hot.
Quítate el abrigo, que hace calor aquí.
Take off your coat; it's warm in here.
— Le notti di Cabiria (1957)
Hoy hace calor, ¿cierto?
It's hot today, isn't it?
¡Qué hace calor hoy!
It's so hot today!
Hoy no hace calor especialmente.
It's not particularly hot today.