Last updated: June 24, 2025
In December, the average temperature in Milan, United States hovers around 4°C (39°F). Expect a chilly range where temperatures can plummet to a minimum of -17°C (2°F) and reach a maximum of 20°C (68°F). Additionally, the month brings about 109 mm (4.3 in) of precipitation spread over 10 days, contributing to an average humidity level of 87%. Stay prepared for the mix of cold and damp weather!
In December in Milan, the average temperature is 4°C (39°F). The maximum can reach 20°C (68°F), while the minimum can drop to as low as -17°C (2°F). It's advisable to pack layers and prepare for a mix of chilly and mild weather when traveling during this time.
In Milan in December, the precipitation amount is 109 mm (4.3 in) spread over 10 days.
In Milan in December, humidity is 87%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and gritty, as the air hangs heavy and clings to your skin.
In Milan in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Milan, you can check the information here.
UV Risk Categories
Weather in Milan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Milan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (33°F) | 86 mm (3.4 inches) | 87% | moderate |
| February Weather | 3°C (37°F) | 117 mm (4.6 inches) | 85% | moderate |
| March Weather | 7°C (45°F) | 140 mm (5.5 inches) | 86% | high |
| April Weather | 12°C (54°F) | 127 mm (5.0 inches) | 84% | very high |
| May Weather | 19°C (66°F) | 127 mm (5.0 inches) | 79% | very high |
| June Weather | 23°C (73°F) | 148 mm (5.8 inches) | 82% | very high |
| July Weather | 25°C (77°F) | 111 mm (4.4 inches) | 79% | very high |
| August Weather | 24°C (75°F) | 103 mm (4.1 inches) | 70% | very high |
| September Weather | 21°C (70°F) | 90 mm (3.5 inches) | 69% | very high |
| October Weather | 15°C (59°F) | 100 mm (3.9 inches) | 76% | high |
| November Weather | 6°C (44°F) | 102 mm (4.0 inches) | 88% | moderate |
| December Weather | 4°C (39°F) | 109 mm (4.3 inches) | 87% | moderate |