The Christmas decorations at Disneyland typically go up in early November, depending on the year. The holiday season officially begins with the opening of "A Christmas Fantasy" parade, which features beloved characters like Mickey and Minnie Mouse, Santa Claus, and many more. From then on, the entire park is transformed into a winter wonderland, with festive decorations, seasonal attractions, and holiday-themed merchandise. You can enjoy the magic of Christmas all season long at Disneyland!