Cagliari & Campidano weather in December

December in Cagliari & Campidano averages daytime highs of 16.3°C and nights around 9.2°C, with about 8 hours of sunshine a day. The sea averages 16.3°C: cold, for hardy swimmers only. This is one of the wetter months, with about 7 rainy days and around 46 mm of rain, so pack a layer for showers, and winter sun is gentle (average peak UV 3).

Daytime high

16.3°C

Nights around 9.2°C

Sea temperature

16.3°C

Typical max waves 0.5 m

Rain

7 days

About 46 mm over the month

Sunshine

8 hrs/day

Average bright sunshine

UV index

Average daily peak

Wind

20 km/h

Average daily maximum

Weather data by Open-Meteo.com (CC BY 4.0). Figures are ten-year averages from the historical record.

What December feels like

December is crisp, bright and gently festive. Christmas markets and nativity scenes appear in the towns, the Gennargentu often takes a dusting of snow, and clear days deliver some of the year's sharpest coastal light. The sea is for looking at, the table is for sitting at, and the island feels entirely its own. A fine month for city breaks in Cagliari or Alghero. Around Cagliari and the Campidano the capital anchors everything, with Poetto's long beach and the south coast an easy reach away.

What to do in Cagliari & Campidano in December

Castello and the flamingo park

Cagliari's hilltop quarter, its Roman amphitheatre and the flamingos of Molentargius all sit within one comfortable mild-weather day.

Towns & Villages Nature & Wildlife Cagliari & Campidano

Hit the trails

Mild temperatures are ideal walking weather, from coastal paths to proper mountain days. Views are sharp and the car parks are quiet.

Hikes Nature & Wildlife

Scenic drives and day trips

Comfortable driving weather with clear air: string together a coast road, a mountain pass and a long lunch.

Driving Routes & Scenic Roads Day Trips

Towns and villages

Wander stone villages and market towns at a temperature that lets you linger, without summer's crowds or heat.

Towns & Villages Local Markets & Food Producers

Go back 3,000 years

Sardinia's nuraghi, tombs and ancient sites are open-air attractions, and the shoulder seasons are the kindest time to explore them.

Archaeology & Nuraghi History

Cagliari & Campidano in December: quick answers

How hot is Cagliari & Campidano in December?

Daytime highs in Cagliari & Campidano average 16.3°C in December, with nights around 9.2°C and roughly 8 hours of sunshine a day (ten-year average).

Is the sea warm enough to swim in December?

The sea around Cagliari & Campidano averages 16.3°C in December: cold, for hardy swimmers only.

Does it rain much in Cagliari & Campidano in December?

Cagliari & Campidano sees about 7 days with rain in December, totalling around 46 mm for the month.

December elsewhere on the island

All of Sardinia Gallura Nurra & Alghero Sassari & Logudoro Barbagia & Nuorese Ogliastra Oristanese & Sinis Sulcis-Iglesiente

Planning a trip? Browse our Cagliari & Campidano guides or see today's live weather.