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December Weather in Castilblanco, Spain

Last updated: August 27, 2025

In December, the average temperature in Castilblanco, Spain hovers around 9°C (48°F). This month can bring a chill, with minimum temperatures dipping to -1°C (30°F), while the mercury can rise as high as 19°C (67°F). Expect 61 mm (2.4 in) of precipitation spread over 8 days, contributing to an average humidity of a cozy 87%.

December Temperature in Castilblanco

In December in Castilblanco, the average temperature is 9°C (48°F), with a maximum that can reach 19°C (67°F) and a minimum that can dip as low as -1°C (30°F). This variation makes it a great time for travelers to enjoy the crisp weather, perfect for outdoor activities.

December Weather in Castilblanco: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Castilblanco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castilblanco, December typically has an average temperature of 9°C (48°F), with highs reaching up to 19°C (67°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec445053576775818274645247
Data source: Temperature data for Castilblanco generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Castilblanco

In Castilblanco in December, the precipitation amount is 61 mm (2.4 in) distributed over 8 days.

December Precipitation Trends in Castilblanco

The chart displays monthly precipitation patterns in Castilblanco, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Castilblanco, December typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec373872722699623637461
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Castilblanco

In Castilblanco in December humidity is 87%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and requiring extra layers and careful planning for any activities.

December Average Humidity in Castilblanco

This chart illustrates the average monthly humidity levels in Castilblanco, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Castilblanco is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%76%68%64%62%47%46%42%54%69%85%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Castilblanco

In Castilblanco 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 Castilblanco, you can check the information here.

Maximum UV Index Levels in Castilblanco for December

The chart shows the monthly maximum UV Index (UVI) for Castilblanco in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Castilblanco typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec347910111198743
Data source: Castilblanco December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Castilblanco Compares to Other Months

Weather in Castilblanco varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Castilblanco, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Castilblanco, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)37 mm (1.5 inches)87%moderate
February Weather10°C (50°F)38 mm (1.5 inches)76%moderate
March Weather11°C (53°F)72 mm (2.8 inches)68%high
April Weather14°C (57°F)72 mm (2.8 inches)64%very high
May Weather19°C (67°F)26 mm (1.0 inches)62%very high
June Weather24°C (75°F)9 mm (0.4 inches)47%extreme
July Weather27°C (82°F)9 mm (0.4 inches)46%extreme
August Weather28°C (82°F)6 mm (0.2 inches)42%very high
September Weather23°C (74°F)23 mm (0.9 inches)53%very high
October Weather18°C (64°F)63 mm (2.5 inches)69%high
November Weather11°C (52°F)74 mm (2.9 inches)85%moderate
December Weather9°C (48°F)61 mm (2.4 inches)87%moderate

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