The United Kingdom experienced its warmest May dawn on record, with temperatures in South London not falling below 21.3 degrees Celsius overnight. This 'tropical night' is a rare phenomenon for the British Isles.

<p> <img alt="" height="80" src="https://en.mercopress.com/data/cache/noticias/110256/100x80/heat.jpg" style="float: left; margin: 0 12px 6px 0; border: 1px solid #333;" width="100" /> The United Kingdom registered on Tuesday its warmest dawn ever recorded for a May month, with a minimum temperature of 21.3 degrees Celsius in south London, according to the British Meteorological Office, known as the Met. The reading constitutes what meteorologists call a "tropical night," a ...