London heatwave spurs river cooling and indoor experience recommendations

During a heatwave across the United Kingdom, experts from City Cruises highlighted that the River Thames can feel up to 10% cooler—approximately three degrees Celsius—than surrounding streets, offering a natural respite for Londoners.

City Cruises’ John Rowthorn explained that water heats more slowly than roads and buildings, and the river’s openness promotes breezes that lower temperatures. Health officials also urged residents to stay hydrated, seek shade, and avoid prolonged sun exposure.

In parallel, the “Beat the Heat with Fever” campaign listed a range of air‑conditioned indoor activities across London, from immersive science exhibitions at the Science Museum to live jazz at the Phoenix Arts Club, interactive courtroom dramas at Shaw Theatre, and various immersive gaming and art experiences. These options aim to help locals and visitors escape the high temperatures while enjoying cultural and leisure events.