The warmest parts of the Underground network have been revealed in a map compiled by Transport for London (TfL).
The Central Line was the hottest, with temperatures of 32C (90F) between Holland Park and Mile End. Most stations on the Bakerloo Line reached 32C, though temperatures eased further south on the line.
Pimlico – already served by one of the cooler lines (the Victoria Line) is due to benefit further as tfl plans include an innovative groundwater cooling trial at Victoria Tube station. If successful, the trial could lead to it being applied at other deep-level Underground stations in future.




