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December Weather in Alustante, Spain

Last updated: August 27, 2025

In December, the average temperature in Alustante, Spain hovers around 3°C (38°F), offering a crisp atmosphere. Expect minimums plunging to -7°C (20°F) and maxing out at a comfortable 17°C (62°F). This month also brings about 61 mm (2.4 in) of precipitation over 9 days, contributing to an average humidity level of 84%.

December Temperature in Alustante

In December in Alustante, the average temperature is 3°C (38°F). Maximums can reach 17°C (62°F), while minimums can drop as low as -7°C (20°F). Be prepared for a mix of chilly and mild weather when traveling during this time!

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

The chart illustrates December temperature patterns in Alustante, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alustante, December typically has an average temperature of 3°C (38°F), with highs reaching up to 17°C (62°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec343941465463696961524138
Data source: Temperature data for Alustante 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 Alustante

In Alustante in December, the precipitation amount is 61 mm (2.4 in) spread over 9 days.

December Precipitation Trends in Alustante

The chart displays monthly precipitation patterns in Alustante, 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 Alustante, December typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec4547881258868234145597861
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alustante

In Alustante in December, humidity is 84%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as the cold air clings to you and the moisture creates an oppressive heaviness in the atmosphere.

December Average Humidity in Alustante

This chart illustrates the average monthly humidity levels in Alustante, 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 Alustante is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%80%73%69%64%59%58%58%64%76%82%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Alustante

In Alustante 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 Alustante, you can check the information here.

Maximum UV Index Levels in Alustante for December

The chart shows the monthly maximum UV Index (UVI) for Alustante 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 Alustante typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101211109743
Data source: Alustante 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 Alustante Compares to Other Months

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

This table compares monthly weather conditions in Alustante, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)45 mm (1.8 inches)85%moderate
February Weather4°C (40°F)47 mm (1.9 inches)80%moderate
March Weather5°C (42°F)88 mm (3.5 inches)73%high
April Weather8°C (46°F)125 mm (4.9 inches)69%very high
May Weather12°C (55°F)88 mm (3.5 inches)64%very high
June Weather17°C (63°F)68 mm (2.7 inches)59%extreme
July Weather21°C (70°F)23 mm (0.9 inches)58%extreme
August Weather21°C (70°F)41 mm (1.6 inches)58%very high
September Weather16°C (61°F)45 mm (1.8 inches)64%very high
October Weather11°C (52°F)59 mm (2.3 inches)76%high
November Weather5°C (41°F)78 mm (3.1 inches)82%moderate
December Weather3°C (38°F)61 mm (2.4 inches)84%moderate

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