Cagliari weather in December
December in Cagliari: cool, a little rain, with clean air — a good time to visit.
#11 of 12 months in Cagliari · #580 of 897 destinations to visit in December · comfort 64/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cagliari in December
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Cagliari climate normals — December
| Daytime high | 16°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 9°C / 49°F | |
| Rainfall | 50 mm / 2 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 10°C / 49°F | |
| Sunshine | 7.4 h/day | |
| Daylight | 9.5 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cagliari in December — FAQ
- Is December a good time to visit Cagliari?
- December in Cagliari: cool, a little rain, with clean air — a good time to visit. It ranks #11 of 12 months for Cagliari on SeasonMap's comfort score (64/100).
- What is the weather like in Cagliari in December?
- In December, Cagliari averages a daily high of 15.6°C and a low of 9.3°C, with about 50.4 mm of rain over roughly 8.4 rainy days.
- What is the air quality in Cagliari in December?
- Cagliari has a mean US Air Quality Index of about 35 in December.