Last updated: August 23, 2025
In December, the average temperature in Riolo Terme, Italy hovers around 6°C (42°F), with a range that can dip to a brisk -6°C (22°F) and peak at a mild 16°C (61°F). Visitors can expect about 77 mm (3.0 in) of precipitation over approximately 10 days, accompanied by an average humidity of 85%. Be prepared for a mix of cool and wet conditions!
In December in Riolo Terme, the average temperature is 6°C (42°F). Maximums can reach 16°C (61°F) and minimums can drop as low as -6°C (22°F). Be prepared for chilly weather and pack layers if you're planning to travel during this time.
In Riolo Terme in December, the total precipitation amount is 77 mm (3.0 in) spread over a duration of 10 days.
In Riolo Terme in December, humidity is 85%. With an average temperature of 6°C (42°F), this humidity feels like walking through a thick mist, making even short strolls feel damp and chilly, which can be uncomfortable for traveling.
In Riolo Terme in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Riolo Terme, you can visit Hourly UV Index in Riolo Terme.
UV Risk Categories
Weather in Riolo Terme varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Riolo Terme, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 34 mm (1.3 inches) | 87% | low |
| February Weather | 7°C (45°F) | 84 mm (3.3 inches) | 79% | moderate |
| March Weather | 9°C (48°F) | 56 mm (2.2 inches) | 69% | moderate |
| April Weather | 13°C (56°F) | 64 mm (2.5 inches) | 71% | high |
| May Weather | 17°C (64°F) | 116 mm (4.5 inches) | 70% | very high |
| June Weather | 23°C (74°F) | 45 mm (1.8 inches) | 65% | very high |
| July Weather | 25°C (77°F) | 68 mm (2.7 inches) | 61% | very high |
| August Weather | 25°C (78°F) | 59 mm (2.3 inches) | 54% | very high |
| September Weather | 20°C (68°F) | 90 mm (3.5 inches) | 66% | high |
| October Weather | 15°C (59°F) | 78 mm (3.1 inches) | 83% | moderate |
| November Weather | 10°C (50°F) | 123 mm (4.9 inches) | 88% | moderate |
| December Weather | 6°C (42°F) | 77 mm (3.0 inches) | 85% | low |