The climate of the Island of Hawaii during December offers a unique blend of tropical conditions with seasonal variations. Generally, this period marks the beginning of the wetter season, bringing increased rainfall and cooler temperatures compared to the summer months. Coastal regions typically experience daytime highs in the mid-70s Fahrenheit (low 20s Celsius) and nighttime lows in the mid-60s Fahrenheit (high teens Celsius), while higher elevations, such as those on Mauna Kea and Mauna Loa, can see significantly cooler temperatures, including potential snowfall. Ocean temperatures remain relatively warm, making water activities still enjoyable.
Understanding these climatic conditions is crucial for planning trips to the island during this time. The increased rainfall can impact outdoor activities and necessitate appropriate clothing and gear. Conversely, the cooler temperatures can provide a welcome respite from the summer heat, offering more comfortable conditions for hiking and exploration. Historically, December marked the beginning of the Makahiki season, a period of peace and celebration in ancient Hawaiian culture, connected to the return of the Pleiades star cluster and associated with agricultural abundance. This cultural significance adds another layer of interest to a December visit.
