Weather in Cagliari for December 2025
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Until now, December 2025 in Cagliari has been nearly identical to the historical average, with a temperature of 15.9 °C (showing only a slight deviation of -0.3 °C).
The forecast for the next days in Cagliari predicts temperatures to be around 16 °C, close to the historical average.
In general, the average temperature in Cagliari at the beginning of December is 16 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 16.1 °C by the end of December.
With an average of 3 rainy days, Cagliari experiences minimal rainfall in December.
Is December a good time to visit Cagliari? check out the best time to travel to Cagliari page.
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Cagliari Weather December
Temperatures trend during December in Cagliari
December weather in Cagliari day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Cloudy | 18° /10° | 0 mm | 5 | |
| 2 Dec. |  Patchy rain possible | 17° /8° | 0 mm | 5 | |
| 3 Dec. |  Partly cloudy | 16° /10° | 3 mm | 4 | |
| 4 Dec. | Patchy rain possible | 15° /9° | 0.2 mm | 4 | |
| 5 Dec. |  Patchy light rain with thunder | 15° /8° | 2 mm | 4 | |
| 6 Dec. | Patchy rain possible | 15° /7° | 0.2 mm | 4 | |
| 7 Dec. |  Sunny | 16° /9° | 0.2 mm | 4 | |
| 8 Dec. |  Moderate rain | 16° /9° | 9 mm | 4 | |
| 9 Dec. |  Light drizzle | 16° /9° | 0.7 mm | 4 | |
| 10 Dec. | Partly cloudy | 16° /8° | 0 mm | 5 | |
| 11 Dec. | Sunny | 16° /8° | 0 mm | 4 | |
| 12 Dec. |  Overcast | 17° /10° | 2.3 mm | 4 | |
| 13 Dec. | Cloudy | 18° /11° | 0.4 mm | 5 | |
| 14 Dec. | Patchy rain possible | 16° /9° | 0.3 mm | 4 | |
| 15 Dec. | Moderate rain | 16° /13° | 15.6 mm | 0.2 | |
| 16 Dec. | Moderate rain | 16° /13° | 6.5 mm | 0.1 | |
| 17 Dec. | Overcast | 17° /12° | 0 mm | 0.3 | |
| 18 Dec. | Patchy rain possible | 18° /13° | 1.4 mm | 0.1 | |
| 19 Dec. | Moderate rain | 15° /13° | 18.9 mm | 0 | |
| 20 Dec. | Patchy rain possible | 16° /13° | 2.2 mm | 3 | |
| 21 Dec. | Patchy rain possible | 14° /11° | 2.6 mm | 3 | |
| 22 Dec. | Patchy rain possible | 15° /11° | 0.5 mm | 3 | |
| 23 Dec. | Sunny | 16° /10° | 0 mm | 4 | |
| 24 Dec. | Partly cloudy | 16° /10° | 0.1 mm | 4 | |
| 25 Dec. | Patchy rain possible | 16° /13° | 0.4 mm | 3 | |
| 26 Dec. | Patchy rain possible | 16° /13° | 4.1 mm | 3 | |
| 27 Dec. | Moderate rain | 16° /13° | 8.2 mm | 3 | |
| 28 Dec. | Moderate rain | 16° /14° | 9.3 mm | 3 | |
| 29 Dec. | Cloudy | 15° /8° | 0 mm | 4 | |
| 30 Dec. | Partly cloudy | 17° /8° | 0 mm | 5 | |
| 31 Dec. | Cloudy | 17° /10° | 0 mm | 4 | |
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Cagliari weather in December vs November vs January
| November | December | January | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 21°/12° | 18°/7° | 17°/6° |
| Rainfall | 59 mm | 50 mm | 202 mm |
| Wind | 20.1 km/h | 21.8 km/h | 20.2 km/h |
| Humidity | 71% | 73% | 77% |
| Rainy days | 6 days | 3 days | 9 days |
| Dry days | 24 days | 28 days | 22 days |
Planning a trip to Cagliari? Discover the best time to visit
Cagliari in December - FAQ
Cagliari water temperatures in December
The average water temperature of the Mediterranean Sea near Cagliari in December is 16.8 °C. Temperatures remain fairly consistent throughout the month.
- What is the water temperature in Cagliari in December?
- The average water temperature in Cagliari in December is 16.8 °C.
- Can you swim in Cagliari in December?
- Brisk: quick dips and active swimming are fine, but pack a 2–3 mm spring suit if you plan longer sessions or early-morning outings.
What to pack to Cagliari in December?
As you prepare for your trip to Cagliari in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Cagliari, during December, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
December rainfall patterns in Cagliari
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Where is Cagliari?Get accurate weather forecasts for Cagliari, located at latitude 39.231 and longitude 9.119. Stay updated with localized weather information tailored for Cagliari.