Andrássy Avenue in February

April through June and September through October hit the sweet spot. Spring brings blooming plane trees and outdoor café season, while autumn paints the avenue in golden light that makes every palace look like a fairy tale. Summer gets swampy – July temperatures hit 35°C and the lack of air conditioning in historic buildings becomes painful. Winter has its charm with Christmas markets, but expect gray skies and bone-chilling winds that make the 2.3-kilometer walk feel endless. Opera season runs September to June, so book tickets early for the good stuff.