Thermal imaging captured across London on Wednesday revealed surface temperatures ranging from 50 °C to 65 °C, far exceeding the air temperature of 35 °C recorded during the city’s record-breaking heatwave.
At a site in Holborn, pavement reached 65 °C, while an Overground platform in Highbury and Islington recorded 62 °C. Other hotspots included Grays Inn Road (59 °C), Regent Street (57 °C), Oxford Circus (56 °C), King’s Cross station plaza (up to 62 °C), and an Islington playground (53 °C). Even a Victoria Line carriage interior warmed to 40 °C.
Experts warn that such extreme surface heat poses a serious risk to public health and safety, particularly for pets and pedestrians. The rule of thumb is that if a surface is too hot to touch with the back of a hand, it is unsafe for animal paws.
Animal charities have urged owners to avoid walking dogs during peak heat hours, yet reports indicate some owners continue to take pets out despite repeated warnings.
Climate officials described the event as a significant weather occurrence, noting that human‑induced climate change increases the likelihood and intensity of such extremes. Temperatures of this magnitude in June are considered unprecedented for the United Kingdom.
City officials have acknowledged that London lacks adequate infrastructure to cope with frequent extreme heat. Plans are being discussed to improve cooling measures, increase shade and green spaces, and establish clear safety guidelines for vulnerable populations.
Calls for broader action include demands for stricter regulation of fossil fuel emissions and for responsible parties to contribute to mitigation and adaptation efforts.
