Last updated: August 27, 2025
In December, the average temperature in San Cebrian de Castro, Spain hovers around 6°C (43°F). Expect a chill with minimum lows reaching -3°C (26°F), while the mercury can rise to a comfortable 16°C (60°F). Be prepared for 56 mm (2.2 in) of precipitation spread over approximately 9 days, contributing to an average humidity of a damp 91%.
In December in San Cebrian de Castro, the average temperature is 6°C (43°F). The maximum can reach 16°C (60°F), and the minimum can be as low as -3°C (26°F). Travelers should be prepared for a chilly climate and pack layers to stay comfortable during their visit.
In San Cebrian de Castro in December, the precipitation amount is 56 mm (2.2 in) over a period of 9 days.
In San Cebrian de Castro in December, humidity is 91%. With an average temperature of 6°C (43°F), this humidity feels like a thick blanket wrapped around you, making travel uncomfortable and sticky as every step becomes a challenge against the heavy, damp air.
In San Cebrian de Castro 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 Cebrian de Castro, you can visit Hourly UV Index in San Cebrian de Castro.
UV Risk Categories
Weather in San Cebrian de Castro varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Cebrian de Castro, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 23 mm (0.9 inches) | 91% | moderate |
| February Weather | 7°C (45°F) | 46 mm (1.8 inches) | 85% | moderate |
| March Weather | 9°C (48°F) | 54 mm (2.1 inches) | 79% | high |
| April Weather | 11°C (53°F) | 71 mm (2.8 inches) | 77% | very high |
| May Weather | 16°C (61°F) | 49 mm (1.9 inches) | 76% | very high |
| June Weather | 20°C (67°F) | 58 mm (2.3 inches) | 64% | extreme |
| July Weather | 23°C (73°F) | 19 mm (0.8 inches) | 54% | very high |
| August Weather | 23°C (73°F) | 13 mm (0.5 inches) | 52% | very high |
| September Weather | 19°C (66°F) | 45 mm (1.8 inches) | 63% | very high |
| October Weather | 14°C (57°F) | 51 mm (2.0 inches) | 78% | high |
| November Weather | 8°C (47°F) | 63 mm (2.5 inches) | 90% | moderate |
| December Weather | 6°C (43°F) | 56 mm (2.2 inches) | 91% | low |