The air is still fresh; hardy foreigners can head to the beaches on the Lido (where some businesses are still closed). May is really the best month for seeing Italy, with its sunshine, comfortable temperatures and flowers (not so many of these in Venice, of course). Good points: sunshine; comfortable climate.
Weddings are a heightened example of what sociologist Erving Goffman called front stage behavior. Goffman viewed social life as something akin to a performance, where we attempt to manage the impressions we make to others.
This is called impression management. Goffman makes an important distinction between front stage and back stage behavior. As the term implies, front stage actions are visible to the audience and are part of the performance. People engage in back stage behaviors when no audience is present.