🇮🇹 Milan vs 🇵🇱 Warsaw

Milan sits in the western Po Valley, one of Europe's most fog-prone and humidity-trapping basins, hemmed in by the Alps to the north and the Apennines to the south. The city experiences hot, humid summers with weak ventilation and cold, damp winters where temperature inversions trap pollution and moisture at ground level. The Navigli canal system and proximity to several pre-Alpine lakes introduce subtle moisture gradients, while the dense urban core generates one of Italy's strongest urban heat island effects.

Humid continental — cold winters, warm summers, variable transitional seasons

Warsaw has a typical Eastern European continental climate. Winters are cold and grey; summers are warm and increasingly sunny. The city sits in the flat Polish Plain with no geographic barriers to arctic air masses in winter or Mediterranean warmth in summer.