There seem to be two popular ways for knowing how hot things are. They are called Centigrade and Fahrenheit. Depending on where you are or who you’re with, or who made the thermometer, you get different readings.
Rhinos are generally content with “Sizzling, isn’t it?”, “Could it get hotter, I ask you?”, and “Is there enough glare to suit you?”. None of these is memorable, but they cover our needs.
Warm’s warm, etc. Yes? Take a sniff or peer around; it’ll come to you.