Last updated: August 23, 2025
In December, the average temperature in San Pietro, Italy hovers around -3°C (27°F), making it a chilly time of year. Conditions can vary significantly, with minimums dipping to -17°C (3°F) and maximums rising to 7°C (45°F). During this month, expect 108 mm (4.3 in) of precipitation spread over 11 days, contributing to an overall average humidity of a frosty 90%.
In December in San Pietro, the average temperature is -3°C (27°F). Temperatures can peak at 7°C (45°F) and drop to as low as -17°C (3°F). Travelers should be prepared for cold weather conditions and dress accordingly for varying temperatures.
In San Pietro in December, the precipitation amount is 108 mm (4.3 in) over the course of 11 days.
In San Pietro in December humidity is 90%. With an average temperature of -3°C (27°F), this humidity feels like a bitter chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to combat both the cold and the dampness in the air.
In San Pietro 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 Pietro, you can visit Hourly UV Index in San Pietro.
UV Risk Categories
Weather in San Pietro varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Pietro, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 50 mm (2.0 inches) | 92% | low |
| February Weather | -1°C (30°F) | 49 mm (1.9 inches) | 89% | moderate |
| March Weather | 1°C (35°F) | 83 mm (3.3 inches) | 87% | high |
| April Weather | 5°C (42°F) | 112 mm (4.4 inches) | 84% | very high |
| May Weather | 9°C (49°F) | 150 mm (5.9 inches) | 80% | very high |
| June Weather | 14°C (58°F) | 132 mm (5.2 inches) | 82% | very high |
| July Weather | 16°C (61°F) | 104 mm (4.1 inches) | 83% | very high |
| August Weather | 16°C (61°F) | 143 mm (5.6 inches) | 80% | very high |
| September Weather | 12°C (53°F) | 116 mm (4.6 inches) | 83% | high |
| October Weather | 7°C (46°F) | 159 mm (6.2 inches) | 90% | high |
| November Weather | 2°C (36°F) | 136 mm (5.3 inches) | 88% | moderate |
| December Weather | -3°C (27°F) | 108 mm (4.3 inches) | 90% | low |