December in Maui marks the start of the wetter season and the transition to winter. Average temperatures typically range from highs in the low 80s Fahrenheit (high 20s Celsius) to lows in the mid-60s Fahrenheit (high teens Celsius). Rainfall increases noticeably compared to the drier summer months, and visitors should anticipate occasional showers, particularly in the evenings and overnight. Ocean temperatures remain pleasant for swimming, generally hovering around the mid-70s Fahrenheit (low 20s Celsius).
Understanding these climatic conditions is crucial for travelers planning a December trip to Maui. Packing accordingly with layers, rain gear, and swimwear is essential for comfortable exploration of the island. The increased rainfall can impact outdoor activities, but it also contributes to the lush greenery and vibrant waterfalls characteristic of Maui’s landscapes. Historically, this period marked a time of preparation for the Makahiki season, an ancient Hawaiian celebration of peace and harvest.