I found a cute little vacation rental in the Tempe-Mesa "Greateer Phoenix" area. I've never been to Arizona, and am specifically looking for a property with a private pool, as I really want to spend a good chunk of my time floating about in the water!
The owner responded and said that while the temperature would be great during my planned time, she "wasn't sure" about the temperature of the pool and whether it would be warm enough.
She doesn't have a pool heater, so now I'm not sure whether one is necessary at this time of year - does anyone know whether a pool heater is needed for late September? And if the pool isn't heated, anyone know what the temp of the pool might be on its own?