2017 United Kingdom heat wave - Wikipedia 2017 United Kingdom heat wave For other uses, see 2017 heat wave ( disambiguation ). 2017 United Kingdom heat wave Dates 17 June -- 22 June Areas affected United Kingdom Highest temperature 34.5 ° C ( 94.1 ° F ) at London Heathrow The 2017 United Kingdom heat wave was an event that took place in the United Kingdom in June 2017. Temperatures at Heathrow Airport reached a decades - high of 34.5 ° C ( 94.1 ° F ), the hottest June temperature since 1976, on 21 June. This marked five consecutive days of temperatures above 30 ° C ( 86 ° F ), making it an official heatwave, and the first June heatwave since 1995. An incoming cold front from 21 June led to some rainfall and predictions of thunderstorms, similar to those seen earlier in the year, because it would clash with the heat. A yellow storm warning was issued for the North of England and Wales, and South of Scotland, for 27 hours from 0300 on 21 June. Another yellow warning was given nationwide the following day from the time at which the previous warning ends until 1300 ( 1pm ). The Met Office also warned of risks of localised flooding, large hail, and severe thunderstorms ranging from the Midlands northwards from the afternoon of 21 June, though official weather warnings showed that the worst of the storm will have travelled to the South East and East Coast by mid-morning on 22 June. It was also reported that there were concerns over the toxicity of the air within the South of England and Wales -- Sadiq Khan triggered the London Air Pollution emergency alerts -- as the exotic temperature and strong southerly wind brought air from Europe and preserved the pollutants. The meeting of the Royal Ascot on 21 June also considered relaxing its historical and unbroken traditional dress code, which would force men to remain in full dress suit and top hat, and women in long dress and jacket. Incidents The A31 Hog 's Back road, in Guildford, Surrey, melted on 19 June, said to resemble a `` bar of chocolate '' in the heat. Several people died after swimming while trying to cool off. Two teenage boys died in separate incidents after getting into difficulty at a mere and reservoir, and an elderly woman died in the sea off the South coast. References Jump up ^ `` Hottest June day since summer of 1976 in heatwave ''. 21 June 2017. Retrieved 3 August 2017. Jump up ^ `` Hottest June day since summer of 1976 in heatwave ''. BBC. Retrieved 21 June 2017. ^ Jump up to : `` UK Heatwave brings hottest June day for 40 years ''. The Guardian. Retrieved 21 June 2017. Jump up ^ `` Met Office issue Yellow weather warning for rain over Stoke - on - Trent and North Staffordshire ''. The Sentinel. Retrieved 21 June 2017. Jump up ^ `` Met Office issues yellow weather warning for Essex as thunderstorms predicted for county ''. Essex Live. Retrieved 21 June 2017. Jump up ^ `` MET Office weather warnings : Wednesday 21st June 2017 ''. MET Office. Retrieved 21 June 2017. Jump up ^ `` MET Office weather warnings Thursday 22nd June 2017 ''. MET Office. Retrieved 21 June 2017. Jump up ^ `` London mayor issues emergency air quality alert amid heatwave ''. The Guardian. Retrieved 22 June 2017. ^ Jump up to : `` UK heatwave triggers air pollution alert as people flock to beaches ''. The Guardian. Retrieved 22 June 2017. Jump up ^ `` Weather : Hogs Back resembles ' bar of chocolate ' after heatwave causes road surface to melt ''. Get Surrey. Retrieved 21 June 2017. Jump up ^ `` Walsall lake death : Boy, 15, was swimming with friends ''. BBC. Retrieved 21 June 2017. Jump up ^ `` Greenbooth Reservoir drowning : Mum begged Paul Lawson not to swim ''. BBC. Retrieved 21 June 2017. Jump up ^ `` Woman dies at East Wittering ''. Chichester Observer. Retrieved 21 June 2017. External links Met Office, Hot spell June 2017 Heat wave Asia 2007 Asian heat wave India 2002 India heat wave 2015 Indian heat wave 2016 Indian heat wave Pakistan 2015 Pakistan heat wave 2017 Pakistan heat wave Europe July 1757 heatwave 2003 European heat wave 2006 European heat wave 2007 European heat wave 2010 Northern Hemisphere summer heat waves 2013 heatwave in Ireland and the United Kingdom 2014 Swedish heat wave 2017 Southern Europe heat wave United Kingdom 1906 United Kingdom heat wave 1911 United Kingdom heat wave 1955 United Kingdom heat wave 1976 United Kingdom heat wave 1983 United Kingdom and Ireland heat wave 1990 United Kingdom heat wave 1995 United Kingdom heat wave 1997 United Kingdom heat wave Spring 2011 United Kingdom heat wave Autumn 2011 United Kingdom heat wave March 2012 United Kingdom heat wave 2017 United Kingdom heat wave North America 1896 Eastern North America heat wave 1911 Eastern North America heat wave 1936 North American heat wave 1988 -- 89 North American drought 2001 Eastern North America heat wave 2006 North American heat wave 2007 North America South and Eastern heatwave 2007 Western North American heat wave 2009 Pacific Northwest heat wave 2011 North American heat wave March 2012 North American heat wave Summer 2012 North American heat wave 2015 North American heat wave 2016 North American heat wave 2017 North American heat wave United States 1901 eastern United States heat wave 1980 United States heat wave 1995 Chicago heat wave 2000 Southern United States heat wave 2013 Southwestern United States heat wave 2016 American Northeast heat wave Oceania Angry Summer Australian flying fox die - offs Early 2009 southeastern Australia heat wave Late 2009 southeastern Australia heat wave 2014 South - Eastern Australian heatwave January 2014 southeastern Australia heat wave Related Cooling center Hyperthermia List of heat waves Weather events in the United Kingdom Climate of the United Kingdom Drought in the United Kingdom Avalanches Lewes 1836 Buachaille Etive Mòr 2009 Coldwaves Winter 1683 -- 84 Great Frost of 1709 Winter 1894 -- 95 Winter 1946 -- 47 Winter 1962 -- 63 Winter 1981 -- 82 Winter 1985 -- 86 January -- March 1987 Winter 1990 -- 91 October 2008 February 2009 Winter 2009 -- 10 Winter 2010 -- 11 February 2012 March -- April 2013 February -- March 2018 Flash floods Louth 1920 Lynmouth 1952 Chew Stoke 1968 Glasgow 2002 Boscastle 2004 Morpeth 2008 Floods Holmfirth 1738, 1777, 1944 Thames 1928 Thames 1947 South England 1968 Autumn 2000 Summer 2007 Sheffield 2009 November 2009 April 2012 to Early 2013 Winter 2013 -- 14 Somerset Levels 2013 -- 14 Winter 2015 -- 16 June 2016 Heat waves Droughts `` Great Stink '' 1858 August - September 1906 Summer 1911 Summer 1955 Summer 1976 July 1983 August 1990 Summer 1995 August 1997 2003 June - July 2006 April 2011 September - October 2011 March 2012 July 2013 June 2017 April 2018 Storm surges South England 1287 North Sea 1287 Bristol Channel 1607 1928 Thames flood North Sea 1953 North Sea 1976 North Sea 1978 North Sea 2007 Irish Sea & North Sea 2013 Thunderstorms Widecombe - in - the - Moor 1638 Tornadoes London 1091 Great Malvern 1761 Birmingham 2005 London 2006 West Midlands and Wales 2011 Windstorms December 1703 November 1824 August 1848 October 1859 February 1871 December 1879 October 1881 January 1968 January 1976 October 1987 January 1990 December 1998 January 2007 December 2011 January 2012 October 2013 December 2013 Christmas 2013 New Year 2014 February 2014 Windstorm seasons 2015 -- 16 Abigail Desmond Eva 2016 -- 17 2017 -- 18 Ophelia Snow events January 1881 April 1981 Early March 2013 Late March 2013 March 2018 Other Great Smog of Winter 1952 Disputed tsunami This article about disaster management or a disaster is a stub. You can help Wikipedia by expanding it. Retrieved from `` https://en.wikipedia.org/w/index.php?title=2017_United_Kingdom_heat_wave&oldid=837424892 '' Categories : Heat waves in the United Kingdom June 2017 events in the United Kingdom 2017 heat waves 2017 disasters in the United Kingdom Disaster stubs Talk About Wikipedia Add links This page was last edited on 20 April 2018, at 19 : 01. About Wikipedia

Question: what was the hottest day in the uk 2017
Answer: 21 June