UK Weather Forecast Heatwave Extends into Third Peak as Temperatures Break Historical Records

The UK is enduring its third heatwave of the year, with temperatures forecast to remain at or above 35 degrees Celsius through the coming week. Nine days this year have now exceeded 34 degrees, breaking the previous record of seven set in both 1976 and 2020, while water companies have announced hosepipe bans affecting approximately five million people in southern and eastern England.

Record-Breaking Heat and Regional Impact

On Thursday, temperatures peaked at 35.5 degrees Celsius at Wisley in Surrey, marking the eighth consecutive day of extreme heat this year. By Friday, the weather forecast showed the heat shifting westward, with Berkshire, Wiltshire, Hampshire, and Oxfordshire expected to experience highs of 34 to 35 degrees. Scotland recorded 29.3 degrees at Charterhall, while Wales reached 31.3 degrees in Bute Park, Cardiff. Five locations across southern England experienced tropical nights, where overnight temperatures remained above 20 degrees Celsius, with Cippenham in Berkshire reaching 21.2 degrees.

The UK Health Security Agency has expanded amber heat health warnings across all English regions except the north-east, signaling significant strain on health and social care services. Scientists have noted that Western Europe experienced its hottest June on record, with preliminary estimates suggesting the continental death toll from recent heat events could exceed 20,000 across multiple nations. Germany reported 5,120 heat-related deaths this summer, while Belgium documented 1,747 excess deaths during June alone.

Water Restrictions and Climate Context

Four water companies in southern and eastern England have announced hosepipe bans, with additional providers monitoring supplies closely. These restrictions reflect the strain prolonged heat places on water infrastructure during peak demand periods. Climate scientists have attributed the intensity of current heat events to fossil fuel pollution, with research indicating that the 1.4 degrees Celsius of warming already recorded makes such heatwaves significantly more likely and severe. The weather forecast suggests a potential north-easterly breeze may bring temporary relief over the weekend, though conditions are expected to remain dangerous through the following week.