Mid June, not exactly summer but still hot. But that's not something you can really do much about, same thing for cities build on hills, or where it rains/snows

Mid June, not exactly summer but still hot. But that's not something you can really do much about, same thing for cities build on hills, or where it rains/snows a lot. For example, cities in Portugal are both hot and hilly, and like many European cities, are nice to walk in. Yet, in the case of Vegas, you can walk indoors in nice air-conditioned galleries and casinos for good sections of the strip. There are bodies of water and some vegetation, more than there should be considering the climate. Maybe could be better in terms of shade but not terrible either. It is also easy to find refreshment and drinks. Of course the intention of all that is for you to spend and gamble as much as possible, but if that's a problem for you, why are you visiting Vegas in the first place? That's what defines Vegas.