I adore your poetry! I could picture the summer quite well. I live in Malta, and we get many tourists, so it was easy to 'picture the scene. You taught me a new word (interloper) - which fit perfectly in that stanza.

I liked the "Autumn sweeps". Generally, Autumn brings in leaves etc. that needs to be swept, however, this sweeping is about the interlopers. As soon as Autumn arrives, tourism dies out, and the streets are clean from their litter and drunken taunts.