Last updated: August 23, 2025
In December, the average temperature in Valle e Castello, Italy hovers around 5°C (41°F). Expect chilly conditions, with minimums plummeting to -9°C (16°F) and peaking at a comfortable 15°C (59°F). Precipitation makes its presence felt, averaging 109 mm (4.3 in) over 12 days, while humidity remains high at 86%, adding to the overall crisp atmosphere.
In December in Valle e Castello, the average temperature is 5°C (41°F). Maximum temperatures can reach up to 15°C (59°F), while minimums can dip as low as -9°C (16°F). Travelers should prepare for a mix of chilly days and mild afternoons, making layer options essential for comfort.
In Valle e Castello in December, the total precipitation amount is 109 mm (4.3 in) during a span of 12 days.
In Valle e Castello in December humidity is 86%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket wrapping around you, making outdoor activities uncomfortable and travel quite challenging due to the chill combined with the stickiness in the air.
In Valle e Castello 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 Valle e Castello, you can visit Hourly UV Index in Valle e Castello.
UV Risk Categories
Weather in Valle e Castello varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Valle e Castello, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (37°F) | 64 mm (2.5 inches) | 85% | low |
| February Weather | 5°C (42°F) | 70 mm (2.7 inches) | 78% | moderate |
| March Weather | 7°C (44°F) | 87 mm (3.4 inches) | 69% | high |
| April Weather | 10°C (51°F) | 73 mm (2.9 inches) | 71% | high |
| May Weather | 15°C (59°F) | 109 mm (4.3 inches) | 71% | very high |
| June Weather | 20°C (68°F) | 50 mm (2.0 inches) | 63% | very high |
| July Weather | 23°C (73°F) | 48 mm (1.9 inches) | 59% | very high |
| August Weather | 23°C (74°F) | 50 mm (2.0 inches) | 54% | very high |
| September Weather | 18°C (64°F) | 81 mm (3.2 inches) | 67% | high |
| October Weather | 13°C (56°F) | 64 mm (2.5 inches) | 78% | moderate |
| November Weather | 9°C (49°F) | 115 mm (4.5 inches) | 84% | moderate |
| December Weather | 5°C (41°F) | 109 mm (4.3 inches) | 86% | low |