Last updated: August 23, 2025
In December, the average temperature in San Giorgio, Italy hovers around 4°C (39°F). While chilly days can dip as low as -8°C (19°F), you might also enjoy milder afternoons with highs reaching 16°C (61°F). Expect 74 mm (2.9 in) of precipitation spread across 8 days, contributing to an average humidity of 85%—perfect for cozy indoor activities!
In December in San Giorgio, the average temperature is 4°C (39°F). Maximums can reach 16°C (61°F) and minimums can be as low as -8°C (19°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warmth and chill.
In San Giorgio in December, the precipitation amount is 74 mm (2.9 in) over a period of 8 days.
In San Giorgio in December, humidity is 85%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to ward off the cold and moisture.
In San Giorgio 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 Giorgio, you can visit Hourly UV Index in San Giorgio.
UV Risk Categories
Weather in San Giorgio varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Giorgio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 39 mm (1.5 inches) | 88% | low |
| February Weather | 7°C (44°F) | 45 mm (1.8 inches) | 81% | moderate |
| March Weather | 10°C (50°F) | 54 mm (2.1 inches) | 76% | moderate |
| April Weather | 14°C (57°F) | 72 mm (2.8 inches) | 77% | high |
| May Weather | 18°C (65°F) | 99 mm (3.9 inches) | 74% | very high |
| June Weather | 24°C (75°F) | 70 mm (2.7 inches) | 71% | very high |
| July Weather | 25°C (78°F) | 76 mm (3.0 inches) | 67% | very high |
| August Weather | 26°C (78°F) | 51 mm (2.0 inches) | 64% | very high |
| September Weather | 21°C (70°F) | 62 mm (2.4 inches) | 74% | high |
| October Weather | 15°C (59°F) | 101 mm (4.0 inches) | 87% | moderate |
| November Weather | 9°C (49°F) | 149 mm (5.9 inches) | 88% | moderate |
| December Weather | 4°C (39°F) | 74 mm (2.9 inches) | 85% | low |