At 14:10 on a little island in the South China Sea, the ambient temperature outside is 31.3C. According to the Heat Index, however, it is 42.3C.
Am I better off knowing that? Who knows? I remain in the shade and have a nice breeze coming through the window. Across the alley, someone, somewhere, is playing mahjong. Cool, eh? But soon I must go out and cross the square to buy some wholegrain bread at the bakery. On days like these, Captain Sensible says: when you go for that walk, open an umbrella.
Weather Undergound of Hong Kong: Heat Index
Update: Well, I went out, and I am not convinced it feels like forty degrees plus. More like thirty one point three. So much for metrics.