Paris at 50°C: City prepares for extreme heatwaves of the future The year is 2032 and Paris has been hit by a heatwave that has seen temperatures peak at over 50°C for ten days in a row: That was the scenario of a crisis simulation exercise carried out in the French capital on Friday, October 13, that aimed to help prepare the city for the extreme temperatures that experts predict will become increasingly common as the climate warms.