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Cagliari Weather in December
December in Cagliari brings moderate temperatures around 16°C (61°F) during the day, dropping to 9°C (48°F) at night, with some rainfall expected.
Rainfall in Cagliari in December
Historically, approximately 14 days this month are expected to have rain, averaging 57 mm (2.2 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Cagliari in December
December in Cagliari brings typical temperatures with highs around 16°C (61°F) and lows of 9°C (48°F). December is part of winter. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Cagliari in December
With about 126 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.
Average water temperature in December
At 15°C (59°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Cagliari. Our weather planner can help you explore destinations with more pleasant weather conditions.
Cagliari Temperature in December
Min Temperature
9°C (48°F)
Max Temperature
16°C (61°F)
Water Temperature
15°C (59°F)
Chance of Rain
47%
Precipitation
57 mm (2.2 in)
Rainy days
14 days
Humidity
80%
Sunshine
126 hours
Percentage Sunshine
36%
Cagliari Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cagliari - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cagliari typically stay consistent throughout December, with daily highs averaging around 16°C (61°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 9°C (48°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather records for Cagliari in December
Browse day-by-day weather records for Cagliari spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cagliari historical weather extremes in December
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Cagliari.
- The warmest day in December was on December 17, 1989, with a maximum of 23°C (73°F).
- On December 27, 1996, Cagliari saw its coldest December day with temperatures maxing out at 6°C (43°F).
- Cagliari registered its coldest December night on December 23, 1999, with temperatures dropping to -3°C (27°F).
Best Places in Sardinia in December
Find out more about the weather in Sardinia and which places have the best travel conditions in this month. See all of Sardinia in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Cagliari in December
The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. The water temperature sits at about 15°C (59°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Cagliari in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports10/10
Cagliari 3-Day Forecast
More climate data for Cagliari
Temperature Rainfall Sunshine Humidity Water Temp
See the full Cagliari climate overview or explore weather in Sardinia.
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Where to go in December - average daytime high across popular destinations.
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