Last updated: August 27, 2025
In December, the average temperature in Castrillo de la Valduerna, Spain is a brisk 5°C (41°F), with values ranging from a chilly -5°C (24°F) to a mild 15°C (60°F). Expect about 84 mm (3.3 in) of precipitation spread over 11 days, contributing to an average humidity of 87%. It's a perfect time to embrace the cool climate and enjoy the unique charm of the season!
In December in Castrillo de la Valduerna, the average temperature is 5°C (41°F). The maximum can reach 15°C (60°F) and the minimum can be as low as -5°C (24°F). It's advisable to pack layers and prepare for a range of weather conditions when traveling during this time.
In Castrillo de la Valduerna, in December, the precipitation amount is 84 mm (3.3 in) during a period of 11 days.
In Castrillo de la Valduerna in December humidity is 87%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket enveloping you, making every step seem laborious and the chill more biting, which can be quite challenging for traveling.
In Castrillo de la Valduerna 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 Castrillo de la Valduerna, you can visit Hourly UV Index in Castrillo de la Valduerna.
UV Risk Categories
Weather in Castrillo de la Valduerna varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Castrillo de la Valduerna, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 32 mm (1.3 inches) | 87% | low |
| February Weather | 6°C (42°F) | 67 mm (2.6 inches) | 85% | moderate |
| March Weather | 7°C (44°F) | 67 mm (2.6 inches) | 83% | high |
| April Weather | 9°C (49°F) | 90 mm (3.6 inches) | 83% | very high |
| May Weather | 14°C (57°F) | 67 mm (2.6 inches) | 84% | very high |
| June Weather | 17°C (62°F) | 80 mm (3.2 inches) | 84% | extreme |
| July Weather | 20°C (68°F) | 31 mm (1.2 inches) | 86% | very high |
| August Weather | 20°C (68°F) | 28 mm (1.1 inches) | 78% | very high |
| September Weather | 16°C (61°F) | 53 mm (2.1 inches) | 77% | very high |
| October Weather | 12°C (54°F) | 59 mm (2.3 inches) | 82% | high |
| November Weather | 7°C (44°F) | 71 mm (2.8 inches) | 86% | moderate |
| December Weather | 5°C (41°F) | 84 mm (3.3 inches) | 87% | low |