Weather in December
December manifests the arrival of winter in
Kahaluu. With a slightly dropping sea temperature settling at 77°F (25°C), this month is characterized by a cooler seaside climate. It closes the year on a tranquil note, while the daylight hours continue to lose ground. December's weather features crisp air and clear skies, delivering a peaceful conclusion to the year.
Ocean temperature
In Kahaluu, the average seawater temperature in December is 77°F (25°C).
Note: For water activities like swimming, diving, and more, temperatures ranging between 77°F (25°C) and 84.2°F (29°C) offer superior comfort and enjoyment for lengthy durations.
Daylight
December has the shortest days of the year, with an average of 10h and 54min of daylight.
On the first day of the month, sunrise is at 6:53 am and sunset at 5:48 pm. On the last day of December, in Kahaluu, sunrise is at 7:09 am and sunset at 6:00 pm HST.