December weather forecast
Portopetro, Spain

December, the first month of the winter in Portopetro, is still a refreshing month, with temperature in the range of an average low of 8°C (46.4°F) and an average high of 15°C (59°F).

Temperature

The shift from November to December includes a minor decrease in the average high-temperature, lightly dropping from a comfortable 18°C (64.4°F) to a moderate 15°C (59°F). During the nights in December, Portopetro observes an average low-temperature of 8°C (46.4°F).

Rainfall

In Portopetro, in December, it is raining for 15 days, with typically 78mm (3.07") of accumulated precipitation. In Portopetro, Spain, during the entire year, the rain falls for 121 days and collects up to 637mm (25.08") of precipitation.

Sea temperature

In Portopetro, in December, the average water temperature is 16°C (60.8°F).
Note: Most people do not take pleasure in swimming in water at 16°C (60.8°F). The difficulty of managing breathing increases as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 07:48 and sunset at 17:24. On the last day of December, in Portopetro, sunrise is at 08:06 and sunset at 17:33 CET.

Sunshine

The months with the least sunshine in Portopetro are January, November and December, with an average of 5h of sunshine.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.