The highest day temperature in December 2023 was 76°F. The lowest night temperature was 51°F. The average values for day and night temperatures during December were 68.4°F и 55.5°F respectivly.

The average sea surface temperature in December 2023 for Valparaiso was 58.5°F. The maximum and minimum values were 56.2°F and 63.4°F respectively.

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

Precipitation total in December for Valparaiso is 0.1 in.

The average wind speed in December is 9.5 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 Valparaiso in December is 13.1 hours.