Last updated: August 23, 2025
In San Giorio, Italy, the weather in December typically features an average temperature of -4°C (26°F). Expect chilly conditions with minimum temperatures dropping down to -17°C (2°F) and highs reaching up to 6°C (43°F). Additionally, prepare for frequent precipitation, averaging 110 mm (4.3 in) over 13 days, and brace yourself for a high average humidity of 90%.
In December in San Giorio, the average temperature is -4°C (26°F). Maximum temperatures can reach 6°C (43°F), while minimums can dip as low as -17°C (2°F). It's advisable to pack warm clothing for your travels during this time.
In San Giorio in December, the total precipitation amount is 110 mm (4.3 in) over the course of 13 days.
In San Giorio in December, humidity is 90%. With an average temperature of -4°C (26°F), this humidity feels like stepping into a frigid sauna, where even the slightest breeze cuts through the chill, making travel feel like an arduous trek through a frozen mist.
In San Giorio 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 Giorio, you can visit Hourly UV Index in San Giorio.
UV Risk Categories
Weather in San Giorio varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Giorio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 93 mm (3.7 inches) | 91% | moderate |
| February Weather | -2°C (29°F) | 60 mm (2.3 inches) | 87% | moderate |
| March Weather | 0°C (33°F) | 100 mm (3.9 inches) | 84% | high |
| April Weather | 4°C (39°F) | 130 mm (5.1 inches) | 83% | very high |
| May Weather | 8°C (47°F) | 173 mm (6.8 inches) | 78% | very high |
| June Weather | 14°C (57°F) | 179 mm (7.0 inches) | 75% | very high |
| July Weather | 16°C (60°F) | 158 mm (6.2 inches) | 72% | very high |
| August Weather | 15°C (60°F) | 151 mm (5.9 inches) | 63% | very high |
| September Weather | 11°C (53°F) | 95 mm (3.7 inches) | 73% | very high |
| October Weather | 7°C (45°F) | 146 mm (5.8 inches) | 89% | moderate |
| November Weather | 1°C (34°F) | 164 mm (6.4 inches) | 90% | moderate |
| December Weather | -4°C (26°F) | 110 mm (4.3 inches) | 90% | low |