YOU SAID:

It too cold to be swimming out here

INTO JAPANESE

それは寒いからここで水泳

BACK INTO ENGLISH

It's cold, so swimming here

INTO JAPANESE

寒いのでここで水泳

BACK INTO ENGLISH

Swimming because it's cold in here

INTO JAPANESE

ここは寒いので水泳

BACK INTO ENGLISH

Swimming because it's cold in here