Provisional figures show that this month is on track to be the hottest June on record in a series which goes back to 1884, according to the Met Office.
While the forecast for the next few days shows an unsettled picture with temperatures closer to average, it is not likely to be enough to prevent June 2023 being provisionally the UK’s hottest June on record, beating the previous record set in 1940. It would even beat the infamous warmth of June 1976, which is currently the second warmest June on record.
Temperatures in some parts of Wales reached more than 30C degrees on some days in June, and Porthmadog was the hottest place in the UK on several occasion. Find out why here.
The Met Office spokesman Mike Kendon said: “With only a few days of near-average temperatures forecast for the remainder of the month, overall this June will turn out to be provisionally the hottest June on record for the UK for both mean and average maximum temperature.
“Meteorologically, June started with high pressure over the UK bringing often settled and dry conditions with plenty of sunshine. Once that high pressure subsided, warm, humid air took charge over the UK, with 32.2C the highest temperature recorded so far this month and high temperatures for the vast majority of the UK.
“What has been particularly unusual is the persistent warmth for much of the month, with temperatures reaching 25C widely for at least a fortnight, and at times 28 to 30C – whereas we would more typically expect maximum temperatures in the high teens or low 20s at this time of year.”
He added that climate change increases the frequency of hotter, drier summer weather and the chances of record-breaking high temperatures for the UK.
Mike continued: “While the UK has always had periods of warm weather, what climate change does is increase the frequency and intensity of these warm weather events, increasing the likelihood of high temperature records being broken, like we saw for 2022’s annual temperature for the UK.
“It is particularly telling that of the 12 months of the year, for UK average maximum temperature the records for the warmest months include 2019 (February), 2018 (May), 2015 (December), 2012 (March), 2011 (April), 2011 (November), 2006 (July) and now 2023 (June). Statistics such as this clearly tell us of the changing nature of the UK’s climate and how it is particularly affecting extremes.”
Looking forward, Welsh weather forecaster Derek Brockway says there is "no sign yet of another heatwave".
He says for July: "Typical Welsh summer weather as we head into July, in other words changeable and mixed conditions! Some rain and showers. Breezy. Higher pressure possible later in the month. Temperatures near or above average."
