you should come to italy in summer if you want visit beaches, sea, etc... but if you are interested in visiting cities like rome, florence, venice etc to see
monuments you should go on spring or autumn because here the summer is very hot (over 40 oC. dovresti venire in italia in estate se vuoi visitare spiagge, mare ecc.. ma se sei interessato a visitare città come roma, firenze, venezia ecc...