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December Weather in Portbou, Spain

Last updated: August 27, 2025

In December, the average temperature in Portbou, Spain hovers around 11°C (53°F), providing a mild climate. Expect a minimum of 5°C (41°F) and a pleasant maximum of 18°C (65°F). During this period, precipitation totals 38 mm (1.5 in) over about 6 days, contributing to an average humidity of 83%. Prepare for a distinctly refreshing atmosphere!

December Temperature in Portbou

In December in Portbou, the average temperature is 11°C (53°F). Maximum temperatures can reach 18°C (65°F), while minimums can drop as low as 5°C (41°F). This makes it a pleasant time for outdoor activities, so be sure to pack accordingly for both mild and cooler conditions during your travels.

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

The chart illustrates December temperature patterns in Portbou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portbou, December typically has an average temperature of 11°C (53°F), with highs reaching up to 18°C (65°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec505254576370757570645752
Data source: Temperature data for Portbou 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 Portbou

In Portbou in December, the total precipitation amount is 38 mm (1.5 in) spread over 6 days.

December Precipitation Trends in Portbou

The chart displays monthly precipitation patterns in Portbou, 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 Portbou, December typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec61415070402481748948138
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Portbou

In Portbou in December, humidity is 83%. With an average temperature of 11°C (53°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and causing an inevitable sheen of sweat to form, which can dampen the joy of exploring your surroundings.

December Average Humidity in Portbou

This chart illustrates the average monthly humidity levels in Portbou, 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 Portbou is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%77%73%73%71%67%66%63%70%80%84%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Portbou

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

Maximum UV Index Levels in Portbou for December

The chart shows the monthly maximum UV Index (UVI) for Portbou 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 Portbou typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34579101097532
Data source: Portbou 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 Portbou Compares to Other Months

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

This table compares monthly weather conditions in Portbou, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)61 mm (2.4 inches)82%moderate
February Weather11°C (52°F)41 mm (1.6 inches)77%moderate
March Weather12°C (54°F)50 mm (2.0 inches)73%moderate
April Weather14°C (57°F)70 mm (2.8 inches)73%high
May Weather17°C (63°F)40 mm (1.6 inches)71%very high
June Weather21°C (70°F)24 mm (0.9 inches)67%very high
July Weather24°C (75°F)8 mm (0.3 inches)66%very high
August Weather24°C (75°F)17 mm (0.7 inches)63%very high
September Weather21°C (70°F)48 mm (1.9 inches)70%high
October Weather18°C (64°F)94 mm (3.7 inches)80%moderate
November Weather14°C (57°F)81 mm (3.2 inches)84%moderate
December Weather11°C (53°F)38 mm (1.5 inches)83%low

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