Humidity levels are generally moderate, feeling comfortable under the shade of palm trees but occasionally rising near the coast during the evening. Sunshine and Daylight Hours December offers approximately 10 to 11 hours of daylight, with sunrise occurring around 7:00 AM and sunset near 5:45 PM local time.
Leeward vs Windward: How December Weather Differs Across the Islands
While the calendar indicates winter, the islands experience a warm and largely dry period characterized by moderate temperatures and minimal rainfall on the leeward sides. December in Hawaii presents a compelling case for travelers seeking ideal weather conditions, as the archipelago transitions into its prime tourist season.
Sea Conditions and Ocean Activities On the leeward shores, the ocean usually remains calm and clear, perfect for snorkeling, scuba diving, and paddleboarding. Hawaii (Big Island): The Kona coast basks in dry, sunny weather, providing a stark contrast to the rainforests of Hilo on the east side, which sees much higher rainfall.
Hawaii December Weather: Leeward vs Windward Differences
However, the same powerful swells that attract big wave surfers to the north shores of Oahu and Kauai also create hazardous conditions for swimming in those specific areas. Leeward resorts typically experience only occasional passing showers, ensuring that prolonged disruptions to outdoor plans are uncommon.
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