UK June extreme heat expert comment
19 June 2026
Extreme heat is forecast for the weekend commencing Friday 19 June and into the following week.
Dr Jess Neumann provides expert comment. For interviews, contact the University of Reading Press Office on 0118 378 5757 or pressoffice@reading.ac.uk
Dr Jess Neumann, University of Reading, said: “The impacts of heatwaves on people are wide-ranging – some are direct and potentially very severe such as heat exhaustion or heatstroke. However, the effects of heat are not always so obvious or immediate - dehydration, lethargy, headaches, or trapped air pollutants can affect us all.
“People with respiratory, cardiovascular or other underlying health conditions, babies, small children, people working outside and other vulnerable groups are particularly at risk. None of us are immune and we must look after ourselves to stay safe and well.
“It might feel like a summer holiday but don’t underestimate the heat – drink plenty of fluids, stay out of the direct sun, seek shade and cooler areas, avoid exercising, apply suncream if in the sun and wear appropriate clothing. Don’t wait until you are thirsty – drink plenty and regularly.
“There’s a chance of some tropical nights in parts of the country next week. This is where night time temperatures stay above 20 degrees Celsius. Our houses are designed to insulate, and many of us don’t have air conditioning, making it harder for our bodies to cool down at night.
“Effects of prolonged heat on the environment includes increased risk of wildfires, water evaporation leading to falling river and reservoir levels and increased concentrations of pollutants in water sources. Wildlife including birds, mammals and insects will die if they cannot find access to freshwater so consider filling bird baths, or leaving shallow dishes of water for wildlife in your garden.”

