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December Weather in Arenas, Spain

Last updated: August 27, 2025

In December, the average temperature in Arenas, Spain hovers around 13°C (56°F). Expect a pleasant range, with minimums dropping to 6°C (44°F) and daytime highs reaching up to 20°C (69°F). During this time, 42 mm (1.7 in) of precipitation typically falls over 6 days, contributing to an average humidity of 79%. Perfect for enjoying the season’s charm!

December Temperature in Arenas

In December in Arenas, the average temperature is 13°C (56°F). Maximums can reach 20°C (69°F), while minimums can dip as low as 6°C (44°F). This mild climate makes Arenas an ideal destination for travelers seeking a comfortable environment to explore.

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

The chart illustrates December temperature patterns in Arenas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arenas, December typically has an average temperature of 13°C (56°F), with highs reaching up to 20°C (69°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec535556586469757672665956
Data source: Temperature data for Arenas 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 Arenas

In Arenas in December, the total precipitation amount is 42 mm (1.7 in) spread over 6 days.

December Precipitation Trends in Arenas

The chart displays monthly precipitation patterns in Arenas, 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 Arenas, December typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec483082622332714536542
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Arenas

In Arenas in December, humidity is 79%. With an average temperature of 13°C (56°F), this humidity feels like a damp, cool blanket wrapping around you, making traveling slightly uncomfortable and requiring you to dress in layers to stay comfortable while exploring.

December Average Humidity in Arenas

This chart illustrates the average monthly humidity levels in Arenas, 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 Arenas is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%71%66%58%55%50%55%54%61%70%76%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Arenas

In Arenas 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 Arenas, you can check the information here.

Maximum UV Index Levels in Arenas for December

The chart shows the monthly maximum UV Index (UVI) for Arenas 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 Arenas typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109743
Data source: Arenas 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 Arenas Compares to Other Months

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

This table compares monthly weather conditions in Arenas, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (53°F)48 mm (1.9 inches)76%moderate
February Weather13°C (55°F)30 mm (1.2 inches)71%moderate
March Weather13°C (56°F)82 mm (3.2 inches)66%high
April Weather15°C (58°F)62 mm (2.4 inches)58%very high
May Weather18°C (64°F)23 mm (0.9 inches)55%very high
June Weather21°C (69°F)3 mm (0.1 inches)50%extreme
July Weather24°C (75°F)2 mm (0.1 inches)55%extreme
August Weather25°C (77°F)7 mm (0.3 inches)54%very high
September Weather22°C (72°F)14 mm (0.6 inches)61%very high
October Weather19°C (66°F)53 mm (2.1 inches)70%high
November Weather15°C (59°F)65 mm (2.6 inches)76%moderate
December Weather13°C (56°F)42 mm (1.7 inches)79%moderate

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