December on Hawaii Island typically offers a transition from the wetter summer months to a drier period. Expect daytime temperatures averaging in the mid-70s Fahrenheit (low 20s Celsius) at lower elevations, dropping to the 60s Fahrenheit (teens Celsius) at higher altitudes. Rainfall varies significantly based on location, with the windward (east) side generally receiving more precipitation than the leeward (west) side. Ocean temperatures remain pleasant, making water activities enjoyable.
Understanding typical weather patterns is essential for planning activities and packing appropriately for a December visit. This knowledge allows travelers to maximize their enjoyment of the island’s diverse offerings, from hiking volcanic peaks to snorkeling in coral reefs. Historically, Hawaiians have relied on close observation of weather patterns for navigation, agriculture, and cultural practices, demonstrating the long-standing significance of understanding seasonal changes.