YOU SAID:

it's cool that the cool weather is coming to life

INTO JAPANESE

涼しい天気がやってくるのは涼しいです

BACK INTO ENGLISH

It's cool when the cool weather comes

INTO JAPANESE

涼しい天気になると涼しい

BACK INTO ENGLISH

It's cool when the weather is cool

INTO JAPANESE

天気が涼しいときは涼しいです

BACK INTO ENGLISH

It's cool when the weather is cool