A fresh heatwave is expected to strike the UK shortly, with meteorological forecasts indicating that certain areas will see temperatures climb to 30C. This upcoming surge in heat is being driven by a significant high-pressure system currently migrating from the Azores toward the Iberian Peninsula.
By the coming weekend, rising temperatures are projected to impact France and the southern regions of Britain. This shift follows a record-breaking June, which stood as the warmest ever recorded in England and the second warmest for the entire UK, based on initial Met Office figures.
Official heatwave status is triggered when specific regional temperature benchmarks are met for three successive days. For London and the south-east, this requirement sits at 28C, whereas northern regions trigger an alert at 25C. While most of the country will stay below these markers until later in the week, Greater London may approach the 28C threshold by Friday.
Sunday could mark the official onset of a heatwave in isolated parts of England if temperatures reach 30C. Looking ahead, the following week is expected to stay consistently hot across southern Britain, though the northwest will likely experience cooler, Atlantic-influenced air. The UK Health Security Agency has responded by issuing yellow heat health alerts for several regions, including the East Midlands and London, highlighting potential health risks for vulnerable individuals.
Unlike previous occurrences in June, current projections suggest lower humidity levels, potentially making the heat more manageable. Northern cities such as Glasgow, Liverpool, and Belfast should remain in the 20 to 24C range as the jet stream keeps cooler, fresher air in those territories.
