December Weather in Castelloli, Spain

Last updated: August 27, 2025

In December, the average temperature in Castelloli, Spain is a crisp 8°C (46°F), with fluctuations ranging from a chilly -4°C (25°F) to a mild 19°C (66°F). Expect about 25 mm (1.0 in) of precipitation spread over 4 days, contributing to an average humidity of 79%. Perfect weather for cozy indoor activities or exploring the vibrant outdoors!

December Temperature in Castelloli

In December in Castelloli, the average temperature is 8°C (46°F), with maximums reaching 19°C (66°F) and minimums plummeting to as low as -4°C (25°F). Travelers should be prepared for a wide range of weather conditions during this time.

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

The chart illustrates December temperature patterns in Castelloli, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelloli, December typically has an average temperature of 8°C (46°F), with highs reaching up to 19°C (66°F) and lows dropping to around -4°C (25°F).

Data source: Temperature data for Castelloli generated using information from the Copernicus Climate Change Service.

December Precipitation in Castelloli

In Castelloli in December, the precipitation amount is 25 mm (1.0 in) over the course of 4 days.

December Precipitation Trends in Castelloli

The chart displays monthly precipitation patterns in Castelloli, 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 Castelloli, December typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 4 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Castelloli

In Castelloli in December humidity is 79%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities a bit less enjoyable and leading travelers to seek cozy, warm spots to regain their comfort.

December Average Humidity in Castelloli

This chart illustrates the average monthly humidity levels in Castelloli, 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 Castelloli is approximately 79%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Castelloli

In Castelloli 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 Castelloli, you can visit Hourly UV Index in Castelloli.

Maximum UV Index Levels in Castelloli for December

The chart shows the monthly maximum UV Index (UVI) for Castelloli 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 Castelloli typically reaches 2, which falls under the low exposure category.

Data source: Castelloli 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 Castelloli Compares to Other Months

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

This table compares monthly weather conditions in Castelloli, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	51 mm (2.0 inches)	79%	moderate
February Weather	9°C (49°F)	44 mm (1.7 inches)	74%	moderate
March Weather	11°C (51°F)	56 mm (2.2 inches)	71%	moderate
April Weather	13°C (55°F)	87 mm (3.4 inches)	69%	high
May Weather	17°C (63°F)	64 mm (2.5 inches)	66%	very high
June Weather	21°C (70°F)	52 mm (2.0 inches)	65%	very high
July Weather	24°C (75°F)	46 mm (1.8 inches)	64%	very high
August Weather	24°C (76°F)	66 mm (2.6 inches)	64%	very high
September Weather	20°C (69°F)	107 mm (4.2 inches)	68%	high
October Weather	16°C (61°F)	117 mm (4.6 inches)	77%	high
November Weather	11°C (51°F)	66 mm (2.6 inches)	79%	moderate
December Weather	8°C (46°F)	25 mm (1.0 inches)	79%	low