Tropical night

A tropical night is a term used in the United Kingdom and some other European countries to describe days when the temperature does not fall under 20 °C during the night time.[1] This definition is in use in many European countries including the United Kingdom, Spain, Sweden, Norway, the Netherlands, Germany, Finland and Latvia.

United Kingdom

The Met Office began tracking 'tropical nights' in 2018.[2][3] This criterion is infrequently met in recent decades, with the 30 years between 1961 and 1990 seeing 44 tropical nights, most of them associated with the hot summers of 1976 and 1983. From 1991 to 11 August 2020, 84 such nights were recorded, with 21 of them occurring since 2008. Five nights that stayed above 20 °C were recorded in 2018, and four in 2019. By 11 August 2020, four tropical nights had been recorded for that year, one in June and three in August.[4]

References
  1. McGrath, Matt (2 November 2018). "Weather: UK experiencing hotter days and 'tropical nights' - Met Office". BBC. Retrieved 9 April 2019.
  2. "Potential record-breaking heat today". Met Office. 25 July 2019. Retrieved 26 July 2019.
  3. Knapton, Sarah (2 November 2018). "Met Office starts tracking 'Tropical Nights' in Britain as weather becomes more extreme". The Telegraph. Retrieved 26 July 2019.
  4. Smith, Daniel (11 August 2020). "Steamy 'tropical nights' ahead as heatwaves become more common in UK". WalesOnline.

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