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We're part of the REI Co-op family,
where a life outdoors is a life well lived.
Is it possible to hit RA or Inti in early June without dying from heat? Is it purely east facing? Shade in afternoon?
It'd be really hot. The first half faces east, the second faces southeast, and would bake until early afternoon. Temps would likely be in the 80s, maybe low 90s in the morning that time of year.
Personally, I'd go for something more shady like the warrior or something in black velvet.
Start really really early, or late -- and by far most importantly wear a sun hoody.