This map shows which climate European cities can expect 64 years in the future:

London‘s climate will resemble that of the Portuguese coast;
Paris weather will resemble that of the Extremadura, in the interior of the Iberian peninsula;
Stockholm and Oslo are a bit further to the north, close together and close to Barcelona;
Barcelona itself will meteorologically migrate to northern Morocco;
while Berlin will situate itself weather-wise in the Algerian hinterlands of Kabylia;
Istanbul, the largest Turkish city, will move to the southern coast of that country;
and will be joined there by Rome, as its present-day climate will prove all but eternal;
Helsinki‘s weather will resemble that of central Europe, southern Poland to be exact;
and finally, Saint Petersburg will come to feel like Belarus – although I’m not sure that’s much of an improvement.

Map suggested by Stefan Geens, taken from The Guardian here, but originally from the Centre International de Recherche sur l’Environnement et le Développement in France.