YOU SAID:

don't go outside it is hot

INTO JAPANESE

don't それ外に出て暑いです

BACK INTO ENGLISH

don't go out, it's hot

INTO JAPANESE

外出しない、それは暑い

BACK INTO ENGLISH

Indoors, it's hot

INTO JAPANESE

屋内では、それは暑い

BACK INTO ENGLISH

Indoors, it's hot