May to August is usually the most popular time to visit Copenhagen, especially if you’re focused on design, walkable, and city breaks. Outside that window, weather, crowds, and prices can change—so the neighborhood you pick matters more.
If your dates are fixed, choose between Indre By and Vesterbro first, then decide whether design hotels or a more spacious stay fits your days better.
If your dates are flexible, shifting a week or two around May to August can mean easier availability and a less crowded feel.
Østerbro is useful when Indre By feels too busy or when you want a different balance of price, quiet, and access.
Pack a little buffer into your arrival day in Copenhagen so the first night is about settling in, not racing across town.