You can say "Bueno y caliente".
you would say "eres guapo" which means "you are good looking"
Muy guapo.Very good-looking.
"gato caliente" means Hot cat in "spanish"
Hot date - fecha caliente
calor [ka'loɾ]
"Tengo calor"
Francisco
Hace calor
Well, it's not exact but to say You're hot in Spanish it is "as tu es caliente" I hope that helps...
Specify more what you mean by 'hot'
Quieres un hot dog?
¿Hace calor alla? (is it making hot over there)