Perhaps if you swapped the populations of Bogotá and Berlin you would find the new Berliners becoming more "chill" and the new Bogotans becoming more "hot-blooded."
“Bogotá has an oceanic climate (Köppen Cfb) bordering on a warm-summer Mediterranean climate (Csb). The average temperature is 14.5 °C (58 °F), varying from 6 to 19 °C (43 to 66 °F) on sunny days to 10 to 18 °C (50 to 64 °F) on rainy days. Dry and rainy seasons alternate throughout the year. The driest months are December, January, July and August. The warmest month is March, bringing a maximum of 19.7 °C (67.5 °F).”
https://en.m.wikipedia.org/wiki/Bogotá
Berlin is literally a furnace compared to this, with average daily maximums well above 30 °C in the summer.
But we should also investigate whether living in a city that has an accent in its name is predisposing people to violence? Maybe that’s why Bogotá, Medellín and Cancún are more violent than Berlin or London. Brb, I’m gonna look at the data…