The highest day temperature in December 2023 was 81°F. The lowest night temperature was 70°F. The average values for day and night temperatures during December were 76.7°F и 72.6°F respectivly.

The average sea surface temperature in December 2023 for Kahului was 80.9°F. The maximum and minimum values were 80.2°F and 82.0°F respectively.

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

Precipitation total in December for Kahului is 0.9 in. It makes december one of the most rainy months of the year.

The average wind speed in December is 12.3 mph. It makes December one of the most windy months of the year for Kahului.

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 Kahului in December is 7.7 hours.