December weather forecast
Gibraltar, Gibraltar

December marks the onset of winter in Gibraltar, boating colder temperatures and higher occurrences of rainfall. Rainfall remains high, collecting 127mm (5") over 10 days, nearly matching the peak seen in January. Sea temperatures drop to a yearly low of 16.8°C (62.2°F) dissuading most water sport activities. The daylight hours are at their shortest, and the sunshine duration reduces to six hours a day. A low UV index of two accompanies the cooler climate, providing a respite from the heat of preceding months.

Temperature

The advent of December presents an average high-temperature of a still comfortable 17°C (62.6°F), maintaining a close correlation with the preceding month. Throughout December, the temperature tends to fall to a consistent average low of 11°C (51.8°F).

Rainfall

In December, in Gibraltar, the rain falls for 10 days. Throughout December, 127mm (5") of precipitation is accumulated. In Gibraltar, during the entire year, the rain falls for 63.5 days and collects up to 767mm (30.2") of precipitation.

Sea temperature

In December, the average sea temperature in Gibraltar is 16.8°C (62.2°F).
Note: The majority of individuals do not enjoy swimming in water that is 16.8°C (62.2°F). Breathing control becomes more challenging as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of December in Gibraltar, sunrise is at 08:14 and sunset at 18:07. On the last day of the month, sunrise is at 08:32 and sunset at 18:17 CET.

Sunshine

The months with the least sunshine are January, November and December, with an average of 6h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.