The best time to go to Mauterndorf largely depends on whether you're seeking a winter sports holiday or a summer outdoor adventure.For winter sports enthusiasts, the prime time to visit is from December to March. During these months, Mauterndorf and the surrounding Lungau region are blanketed in snow, offering excellent conditions for skiing, snowboarding, and cross-country skiing. The Grosseck-Speiereck ski area, directly accessible from Mauterndorf, typically operates throughout this period, and you'll find a lively, festive atmosphere around Christmas and New Year.If you prefer hiking, cycling, or enjoying the alpine scenery without snow, then the best time to visit Mauterndorf is from June to September. The weather is generally warm and pleasant, and the walking trails are clear and accessible. You can explore the picturesque landscapes of the Lungau Biosphere Reserve, visit Mauterndorf Castle, or take a scenic ride on the historic steam train.