While I never experienced 48 degrees Celsius, I have experienced 40 degrees. But after experiencing minus 25 degrees Celsius last December, I can tell you that I would prefer 48 degrees to minus 25 degrees.
With 48C (again, extrapolating from 40 C I actually experienced) At least I can take off my cloths, keep myself hydrated and swing the handfan as fast as I can to stay alive till sunset. With minus 25C, you're dead in 20 minutes unless you are inside. I absolutely don't believe there is enough layer of clothing to keep me from frosting for more than 1 hour in minus 25C outside.