December in Hawaii offers a generally pleasant tropical climate, though variations exist across the islands and elevations. Expect daytime temperatures averaging in the mid-70s Fahrenheit (low 20s Celsius) at sea level, with cooler conditions at higher altitudes. Rainfall is more frequent during this month, contributing to lush vegetation and cooler evenings. Ocean temperatures remain comfortable for swimming and other water activities.
Understanding typical December weather conditions is crucial for planning a Hawaiian vacation. Packing appropriate clothing, booking suitable accommodations, and scheduling outdoor activities all benefit from accurate weather information. Historically, December marks the beginning of the wetter season in Hawaii, influenced by trade wind patterns and seasonal variations. This understanding allows visitors to anticipate potential rain showers and adjust itineraries accordingly.
