The highest day temperature in December 2023 was 83°F. The lowest night temperature was 68°F. The average values for day and night temperatures during December were 77.5°F и 72.3°F respectivly.

The average sea surface temperature in December 2023 for Kauai was 80.9°F. The maximum and minimum values were 79.4°F and 82.0°F respectively.

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

Precipitation total in December for Kauai is 1.2 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 Kauai.

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 Kauai in December is 4.4 hours.