The highest day temperature in December 2023 was 69°F. The lowest night temperature was 48°F. The average values for day and night temperatures during December were 62.3°F и 54.3°F respectivly.

The average sea surface temperature in December 2023 for Portimao was 63.3°F. The maximum and minimum values were 62.2°F and 64.2°F respectively.

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

Precipitation total in December for Portimao is 1.0 in.

The average wind speed in December is 9.3 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 Portimao in December is 6.7 hours.