Cool in Dec
17°C average high
avg high · 9° at night
25°C+ on rarely
Italy
Sardinia (Cagliari) weather in December
Is it warm? No. December in Sardinia (Cagliari) is cool: afternoons average 15°C and nights 9°C. Most days (80%) peak between 13°C and 18°C.
Cool · average high
15°C
25°C or more on almost no days; 20°C or more on almost no days.
- Average low9°overnight
- Sea17°average, 2023–2025
- Rainy days545 mm in the month
- SkyOften cloudy49% cloud · 28% clear days
How warm it really gets
Every December afternoon from 2011–2025: 465 days. Most (80%) peaked between 13° and 18°.
December, year by year
The average December high in each year. The warmest, 2022, averaged 17°C; the coolest, 2017, 14°C.
Compared with home
Average December highs. Expect rain on about 5 days (45 mm in a typical month).
- Sardinia (Cagliari)15°
- Cork10°
- Dublin9°
- London9°
- Belfast8°
- Manchester8°
- Glasgow7°
Warmer in December, not much further
Flying times are estimates from Dublin; Sardinia (Cagliari) is about 3h.
Cool in Dec
17°C average high
avg high · 8° at night
25°C+ on rarely
Cool in Dec
17°C average high
avg high · 12° at night
25°C+ on rarely
Air: ERA5 reanalysis via Open-Meteo, 2011–2025. Sea: Copernicus Marine analysis via Open-Meteo, 2023–2025. Rainy day = 2 mm or more. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology