Weather in December
Concluding the year,
December in
Waimea Canyon State Park,
Hawaii, sees the shortest daylight hours and a significant drop in sea temperatures. The sea temperatures lower further to a cool 76.8°F (24.9°C), mimicking the conditions from the beginning of the year. The daylight hours also hit their yearly low with an average of 10.8 hours. Despite treading into a fresh new year, December weather retains its usual patterns, steering clear of extremes. Minimal daylight and cooler temperatures define the end of the year, providing a full circle to the climatological journey.
Ocean temperature
In December, the average ocean temperature is 76.8°F (24.9°C).
Note: When thinking about a swim in 76.8°F (24.9°C) waters, consider your cold tolerance, the day's sunshine, wind, and air temperature. It is a fun fact that Olympic swimmers dive into waters of 77°F (25°C) to 82.4°F (28°C).
Daylight
The month with the shortest days is December, with an average of 10h and 48min of daylight.
On the first day of December in Waimea Canyon State Park, sunrise is at 7:01 am and sunset at 5:54 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 6:06 pm HST.