Germany is rich with festive traditions that bring warmth and joy to the cold winter months. One of the most cherished is Nikolaustag, or St. Nicholas Day, celebrated on December 6th. This day honors Saint Nicholas, the patron saint of children, sailors, and merchants. A beloved custom associated with this day is the “Nikolausstiefel,” or Nikolaus boot. The Legend of St. Nicholas The origins of Nikolaustag are rooted in the story of St. Nicholas .