🇮🇹 Milan vs 🇫🇷 Paris

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.

Semi-oceanic — mild with four distinct seasons, regular rainfall

Paris has a pleasant climate with warm summers and cool winters. Spring and fall are the most popular seasons for a reason — mild temperatures, manageable crowds, and the city at its most photogenic. Summers can have heat waves; winters are cold but rarely harsh.