I like this kind of scenario for theater representation! They are among the best and most immersive.
In Verona, the city where I was born there are a couple of relevant Roman theater, much touristic and suggestive BUT I would always go for a representation in nature.
And well, 12C in summer, that's quite coldy :D
Cheers to you!
Verona is beautiful!
Totally unrelated funny story.
Wife and I eloped and went to Milan for the honeymoon. When there, we updated Facebook (a long time ago when I used it) and booked a night in Venice, taking the train. My best friend from Australia who I hadn't seen in almost 20 years, sent me a message that he and his wife were in Verona for the opera. So, on the way through, we had breakfast in Verona with them, which turned into lunch. Very random - very, very awesome.