The highest day temperature in December 2025 was 76°F. The lowest night temperature was 59°F. The average values for day and night temperatures during December were 72.9°F и 61.9°F respectivly.

The average sea surface temperature in December 2025 for La Serena was 64.6°F. The maximum and minimum values were 63.0°F and 66.4°F respectively.

Almost all days in December are sunny. There is very low probability of clouds or gloomy days.

Precipitation total in December for La Serena is 0.0 in. It makes december the least rainy month of the year.

The average wind speed in December is 6.4 mph. This value is relatively stable throughout the year.

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 La Serena in December is 13.0 hours.