Visiting Mallorca in December is highly worth it if you are seeking "Christmas charm" and authentic local culture rather than a traditional beach holiday. While the sea is too cold for swimming, the daytime temperatures are a mild and pleasant 16°C (61°F), which is perfect for hiking the Serra de Tramuntana or exploring the Gothic architecture of Palma without the summer crowds. December transforms the island with festive markets like the Feria de Nadal i Reis and stunning light displays along El Paseo Marítimo. A grounded peer observation: many "resort" towns like Magaluf become "ghost towns" in winter, but the capital city of Palma remains vibrant and "supportive" with open museums, world-class dining, and luxury shopping. It is a time for "slow travel"—enjoying a chocolate con churros in a cozy cafe or golfing in ideal, moderate conditions. For a 2026 traveler, December in Mallorca offers a "magical" winter paradise that feels more personal and far less commercial than the hectic summer months.