Last updated: August 23, 2025
In December, the average temperature in San Giovanni, Italy hovers around 14°C (57°F). Expect a cool minimum of 8°C (47°F) and a pleasant maximum reaching 18°C (64°F). With 86 mm (3.4 in) of precipitation spread over 13 days, don’t forget your umbrella! Humidity is typically high at 83%, adding to the overall ambiance of the season.
In December in San Giovanni, the average temperature is 14°C (57°F), with maximums reaching 18°C (64°F) and minimums dropping to 8°C (47°F). Travelers should prepare for mild weather and dress in layers to stay comfortable during varying temperatures.
In San Giovanni, in December, the precipitation amount is 86 mm (3.4 in) over the course of 13 days.
In San Giovanni in December, humidity is 83%. With an average temperature of 14°C (57°F), this humidity feels like you're stepping into a warm, damp embrace that can make outdoor activities quite uncomfortable, often leaving you sweaty and exhausted if you're not prepared with plenty of water and breathable clothing.
In San Giovanni 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 San Giovanni, you can visit Hourly UV Index in San Giovanni.
UV Risk Categories
Weather in San Giovanni varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Giovanni, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (53°F) | 39 mm (1.5 inches) | 84% | low |
| February Weather | 12°C (54°F) | 52 mm (2.1 inches) | 76% | moderate |
| March Weather | 13°C (55°F) | 42 mm (1.6 inches) | 68% | moderate |
| April Weather | 14°C (58°F) | 50 mm (2.0 inches) | 70% | high |
| May Weather | 18°C (64°F) | 49 mm (1.9 inches) | 69% | very high |
| June Weather | 22°C (72°F) | 11 mm (0.4 inches) | 62% | very high |
| July Weather | 25°C (77°F) | 25 mm (1.0 inches) | 57% | very high |
| August Weather | 26°C (78°F) | 8 mm (0.3 inches) | 55% | very high |
| September Weather | 23°C (74°F) | 59 mm (2.3 inches) | 66% | high |
| October Weather | 19°C (67°F) | 82 mm (3.2 inches) | 79% | moderate |
| November Weather | 16°C (61°F) | 153 mm (6.0 inches) | 84% | moderate |
| December Weather | 14°C (57°F) | 86 mm (3.4 inches) | 83% | low |