Last updated: August 23, 2025
In December, the average temperature in Castelletto d'Orba, Italy hovers around 4°C (40°F). Expect a chilly range, with minimum temperatures dipping to -7°C (20°F) and highs reaching up to 15°C (60°F). During this period, you'll experience approximately 96 mm (3.8 in) of precipitation over the course of 9 days, contributing to an overall humidity level of 85%. It's a time to bundle up and prepare for some wet weather!
In December in Castelletto d'Orba, the average temperature is 4°C (40°F). Maximums can reach 15°C (60°F), and minimums can be as low as -7°C (20°F). Be sure to pack layers and prepare for chilly conditions while enjoying your travels!
In Castelletto d'Orba in December, the total precipitation amount is 96 mm (3.8 in) spread over a period of 9 days.
In Castelletto d'Orba in December, humidity is 85%. With an average temperature of 4°C (40°F), this humidity feels like an icy blanket wrapping around you, making outdoor activities feel much colder and damp, which can be quite uncomfortable for traveling.
In Castelletto d'Orba 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 Castelletto d'Orba, you can visit Hourly UV Index in Castelletto d'Orba.
UV Risk Categories
Weather in Castelletto d'Orba varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Castelletto d'Orba, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 46 mm (1.8 inches) | 88% | low |
| February Weather | 7°C (44°F) | 55 mm (2.2 inches) | 81% | moderate |
| March Weather | 9°C (49°F) | 65 mm (2.6 inches) | 76% | moderate |
| April Weather | 13°C (56°F) | 74 mm (2.9 inches) | 77% | high |
| May Weather | 17°C (63°F) | 103 mm (4.1 inches) | 74% | very high |
| June Weather | 22°C (72°F) | 53 mm (2.1 inches) | 71% | very high |
| July Weather | 24°C (76°F) | 52 mm (2.1 inches) | 67% | very high |
| August Weather | 25°C (77°F) | 40 mm (1.6 inches) | 64% | very high |
| September Weather | 20°C (68°F) | 66 mm (2.6 inches) | 74% | high |
| October Weather | 15°C (59°F) | 125 mm (4.9 inches) | 87% | moderate |
| November Weather | 9°C (49°F) | 162 mm (6.4 inches) | 88% | moderate |
| December Weather | 4°C (40°F) | 96 mm (3.8 inches) | 85% | low |