It was also very dry. The hottest day in the UK last year was 19th of July at around 40C and 25% humidity, that puts the wet bulb temperature at 25C. The idea is that with such dry air your sweat evaporates and cools you down. If the humidity had been much higher, people might have died.
It was also very dry. The hottest day in the UK last year was 19th of July at around 40C and 25% humidity, that puts the wet bulb temperature at 25C. The idea is that with such dry air your sweat evaporates and cools you down. If the humidity had been much higher, people might have died.