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December Weather in Gernika-Lumo, Spain

Last updated: August 27, 2025

In December, the average temperature in Gernika-Lumo, Spain hovers around 10°C (50°F). Expect chilly lows of 1°C (34°F) and pleasant highs of 19°C (66°F). This month brings about 172 mm (6.8 in) of precipitation over approximately 17 days, coupled with an average humidity level of 85%. Embrace the cozy atmosphere while you explore!

December Temperature in Gernika-Lumo

In December in Gernika-Lumo, the average temperature is 10°C (50°F). Maximum temperatures can reach 19°C (66°F), while minimum temperatures can drop as low as 1°C (34°F). It's advisable to pack layers to stay comfortable during your travels.

December Weather in Gernika-Lumo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Gernika-Lumo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gernika-Lumo, December typically has an average temperature of 10°C (50°F), with highs reaching up to 19°C (66°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec465051545863666765595250
Data source: Temperature data for Gernika-Lumo 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 Gernika-Lumo

In Gernika-Lumo, in December, the precipitation amount is 172 mm (6.8 in) spread over 17 days.

December Precipitation Trends in Gernika-Lumo

The chart displays monthly precipitation patterns in Gernika-Lumo, 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 Gernika-Lumo, December typically receives around 172 mm (6.8 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec1281121039592105736784115168172
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Gernika-Lumo

In Gernika-Lumo in December, humidity is 85%. With an average temperature of 10°C (50°F), this humidity feels like a heavy, damp blanket surrounding you, making travel feel sluggish and uncomfortable as you navigate through the thick, moist air.

December Average Humidity in Gernika-Lumo

This chart illustrates the average monthly humidity levels in Gernika-Lumo, 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 Gernika-Lumo is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%82%81%81%83%87%82%77%80%83%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Gernika-Lumo

In Gernika-Lumo 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 Gernika-Lumo, you can visit Hourly UV Index in Gernika-Lumo.

Maximum UV Index Levels in Gernika-Lumo for December

The chart shows the monthly maximum UV Index (UVI) for Gernika-Lumo 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 Gernika-Lumo typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Gernika-Lumo 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 Gernika-Lumo Compares to Other Months

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

This table compares monthly weather conditions in Gernika-Lumo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)127 mm (5.0 inches)85%low
February Weather10°C (50°F)112 mm (4.4 inches)83%moderate
March Weather10°C (51°F)102 mm (4.0 inches)82%high
April Weather12°C (54°F)95 mm (3.7 inches)81%high
May Weather14°C (58°F)92 mm (3.6 inches)81%very high
June Weather17°C (63°F)105 mm (4.1 inches)83%very high
July Weather19°C (67°F)73 mm (2.9 inches)87%very high
August Weather20°C (68°F)67 mm (2.6 inches)82%very high
September Weather18°C (65°F)84 mm (3.3 inches)77%high
October Weather15°C (59°F)115 mm (4.5 inches)80%moderate
November Weather11°C (53°F)168 mm (6.6 inches)83%moderate
December Weather10°C (50°F)172 mm (6.8 inches)85%low

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