The highest day temperature in December 2025 was 82°F. The lowest night temperature was 70°F. The average values for day and night temperatures during December were 79.0°F и 73.8°F respectivly.

The average sea surface temperature in December 2025 for Kihei was 82.1°F. The maximum and minimum values were 81.0°F and 82.8°F respectively.

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

Precipitation total in December for Kihei is 0.5 in. It makes december one of the most rainy months of the year.

The average wind speed in December is 9.7 mph. It makes December one of the most windless months of the year for Kihei.

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 Kihei in December is 6.4 hours.