YOU SAID:

it is really hot so I am going to go outside for a swim in the cold water

INTO JAPANESE

とても暑いので、外に出て冷たい水で泳ぎます

BACK INTO ENGLISH

It's so hot that I go out and swim in cold water

INTO JAPANESE

暑いので外に出て冷たい水で泳ぐ

BACK INTO ENGLISH

It's hot so go out and swim in cold water

INTO JAPANESE

暑いので外に出て冷たい水で泳ぐ

BACK INTO ENGLISH

It's hot so go out and swim in cold water