December in Guam typically marks the start of the dry season, offering a respite from the frequent rains of the wet season. Expect warm temperatures, moderate humidity, and sunshine interspersed with occasional showers. Average temperatures range from highs in the low 80s Fahrenheit (around 28 degrees Celsius) to lows in the mid-70s Fahrenheit (around 24 degrees Celsius). Ocean temperatures remain comfortable for swimming and other water activities.
Understanding Guam’s December climate is crucial for travelers planning vacations, businesses coordinating outdoor operations, and residents preparing for seasonal shifts. This period offers favorable conditions for a wide range of activities, including exploring the island’s natural beauty, enjoying water sports, and partaking in cultural events. Historically, December has held significance for the island’s agriculture, providing a window for planting and harvesting certain crops.
