Frankfurt in November

April through October gives you the best weather and longest days. May and September hit the sweet spot — warm enough for outdoor dining but not sweltering hot. The Christmas markets in December transform the city into something magical, though you'll fight crowds and pay premium prices. Summer brings outdoor festivals and beer gardens along the Main River. But here's what locals know: March can be surprisingly pleasant, with fewer tourists and mild temperatures. Avoid January and February unless you enjoy gray skies and 3°C weather. Business travelers pack the city Monday through Thursday year-round, so weekend hotel rates often drop significantly. Book early if you're coming during the Frankfurt Book Fair in October — the city fills with publishers and literary types, driving up accommodation costs.