Spring (April-May): Alpine wildflowers bloom creating spectacular meadows. Easter markets charm with decorated eggs and spring traditions. Temperatures mild (10-18°C) perfect for hiking. Fewer crowds than summer. Some mountain areas still snow-covered early April. Beer gardens reopen for season.
Summer (June-August): Peak tourism season with warmest weather (20-28°C) and longest daylight. All attractions fully operational but expect crowds and higher prices. Festival season including Munich Opera Festival. Alpine hiking at its finest. Book accommodations months in advance. Mountain cable cars rarely have queues.
Autumn (September-October): Ideal time combining good weather, fewer tourists, and Oktoberfest celebrations. Foliage spectacular in forests and Alps. Harvest festivals throughout villages. Comfortable temperatures (12-20°C). Eagle's Nest closes mid-October. Wine harvest season in Franconia.
Winter (November-March): Christmas market season (late November-December 24) transforms cities magically. Skiing and winter sports prime time. Some castles and mountain attractions closed or limited. Cold temperatures (-5 to 5°C) require warm clothing. January-February least crowded with cheapest prices. New Year festivities particularly lively in Munich.
Best Overall: May, September, and early October offer optimal weather-crowd-price balance. December magical for Christmas markets despite cold and crowds.