Last updated: August 23, 2025
In December, the average temperature in Aci Castello, Italy hovers around 14°C (58°F). Expect a cool minimum of 9°C (48°F) and a pleasant maximum of 19°C (67°F). This month sees about 35 mm (1.4 in) of precipitation spread over 8 days, contributing to an average humidity of 75%. Perfect for cozy indoor activities or a light stroll amidst the inviting climate!
In December in Aci Castello, the average temperature is 14°C (58°F). Maximums can reach 19°C (67°F), and minimums can be as low as 9°C (48°F). This makes Aci Castello a pleasant destination for travelers seeking mild weather and comfortable conditions.
In Aci Castello in December, the precipitation amount is 35 mm (1.4 in) over the course of 8 days.
In Aci Castello in December humidity is 75%. With an average temperature of 14°C (58°F), this humidity feels like a lingering blanket of warmth, making travel both refreshing and a bit stifling, as the moisture in the air may leave you feeling slightly sticky while enjoying outdoor adventures.
In Aci Castello in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Aci Castello, you can check the information here.
UV Risk Categories
Weather in Aci Castello varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Aci Castello, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (54°F) | 46 mm (1.8 inches) | 75% | moderate |
| February Weather | 13°C (56°F) | 60 mm (2.4 inches) | 71% | moderate |
| March Weather | 13°C (56°F) | 61 mm (2.4 inches) | 71% | high |
| April Weather | 15°C (60°F) | 26 mm (1.0 inches) | 76% | very high |
| May Weather | 19°C (66°F) | 12 mm (0.5 inches) | 77% | very high |
| June Weather | 23°C (74°F) | 18 mm (0.7 inches) | 76% | very high |
| July Weather | 26°C (80°F) | 8 mm (0.3 inches) | 72% | very high |
| August Weather | 27°C (81°F) | 6 mm (0.2 inches) | 70% | very high |
| September Weather | 25°C (77°F) | 35 mm (1.4 inches) | 73% | very high |
| October Weather | 21°C (70°F) | 146 mm (5.8 inches) | 73% | high |
| November Weather | 18°C (64°F) | 131 mm (5.1 inches) | 75% | moderate |
| December Weather | 14°C (58°F) | 35 mm (1.4 inches) | 75% | moderate |