UK's third heatwave of the year begins, expected to last longer than previous ones

The United Kingdom is bracing for its third heatwave of the year, with temperatures set to climb as high as 34C in some regions by Wednesday and Thursday. While this heatwave is not anticipated to reach the extreme highs of 37.7C seen in late June, weather forecasters predict it will persist for a longer duration.

Yellow heat-health alerts have been issued by the UK's Health Security Agency for the Midlands and southern England, remaining active until July 11. These alerts signal expected minor impacts on health and social care services, with a heightened risk to vulnerable populations.

Temperatures are forecast to reach 31C on Monday in the Midlands, East Anglia, and southeast England, meeting the official heatwave criteria in these areas. The heat is expected to intensify mid-week, with temperatures across England and east Wales likely to be in the high 20s and low 30s. London and southeast England could see the peak temperatures around 34C. Although the all-time UK record of 40.3C set in July 2022 is unlikely to be broken, some models suggest mid-to-high 30s are possible this week.