Heat index calculator
May has arrived, and with it, the early scorching heat of summer. As I wipe the sweat from my forehead, I wondered why some people can tolerate high temperatures better than others. After speaking with a colleague from Morocco, he told me that for him 31°C is also too hot, but in Marocco when it's 40 or 50°C it's perfectly bearable, I wondered why.. I learned that the key to their heat tolerance lies in the relative humidity of the air. When it's hot, our bodies cool down through sweating. However, for sweat to evaporate and provide cooling, the air must be dry enough to allow it. Higher humidity reduces the evaporation of sweat, making it difficult for our metabolism to cool down, and thus increasing the apparent temperature.. The apparent temperature is therefore higher when the humidity is higher. I built a small web app to calculate this apparent temperature, also known as the heat index.
