June isn't bad at all, and really, you can handle the dog days August, September (and sometimes even the first half of October!) if you camp out verrrrrrry close to the ocean. As in, bring with you a print out of the tide chart and move accordingly every couple hours. You'll be dying by the time you get back in your condo/car, but hey, you'd be suffering in AZ anyway... I wouldn't try this, however, over by the fake beach on Sandy Beach in front of Penasco del Sol or Playa Bonita. The tides are way too extreme. Probably same goes for Cholla Bay. From Mirador to Las Conchas and beyond should be doable, as well as the Sandy Beach stretch in front of the resorts. But yeah, make sure your accommodations have some serious AC, you're going to need it!