What is the best South American Country for me to retire in?

Me: Not much interested in the beach. Like warm weather, but would prefer not to have to rely on air conditioning all the time. Will retire with about $1500 monthly income. Would rent and would like a small one or two bedroom apartment with some kind of outdoor space (small yard, patio, or balcony). Prefer not to pay more than $400 - $450 for rent, less even better. But needs to be clean, safe, and everything working. Like nature and would like to be accessible to hiking and nature reserves. Need affordable healthcare plan.
Would prefer to have access to public transportation (prefer to sell my car and rely totally on buses, taxis, etc.) Would like access to libraries, museums, etc. I know I'm asking a lot, but want to make the right choice.