The highest day temperature in December 2023 was 84°F. The lowest night temperature was 69°F. The average values for day and night temperatures during December were 78.0°F и 72.6°F respectivly.

The average sea surface temperature in December 2023 for Oahu was 79.9°F. The maximum and minimum values were 78.8°F and 81.0°F respectively.

Most of the days in December are cloudy but you can also expect sunny or gloomy days.

Precipitation total in December for Oahu is 1.0 in. It makes december the most rainy month of the year.

The average wind speed in December is 10.3 mph. It makes December one of the most windless months of the year for Oahu.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Oahu in December is 5.3 hours.