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December Weather in Olloniego, Spain

Last updated: August 27, 2025

In December, the average temperature in Olloniego, Spain hovers around 7°C (45°F), with fluctuations ranging from a chilly -2°C (28°F) to a comfortable 18°C (64°F). This month witnesses an average precipitation of 151 mm (5.9 in) spread over 17 days, paired with a notable average humidity of 87%. Stay prepared for a mix of cool, damp days!

December Temperature in Olloniego

In December in Olloniego, the average temperature is 7°C (45°F). Maximums can reach 18°C (64°F), while minimums can drop as low as -2°C (28°F). Be prepared for a range of temperatures when traveling to Olloniego during this time.

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

The chart illustrates December temperature patterns in Olloniego, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olloniego, December typically has an average temperature of 7°C (45°F), with highs reaching up to 18°C (64°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec414546495559636360544745
Data source: Temperature data for Olloniego 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 Olloniego

In Olloniego in December, the precipitation amount is 151 mm (5.9 in) over a span of 17 days.

December Precipitation Trends in Olloniego

The chart displays monthly precipitation patterns in Olloniego, 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 Olloniego, December typically receives around 151 mm (5.9 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec94106100110118151969292105148151
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Olloniego

In Olloniego in December, humidity is 87%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures somewhat uncomfortable and urging travelers to seek refuge in cozy cafes or warm indoor activities.

December Average Humidity in Olloniego

This chart illustrates the average monthly humidity levels in Olloniego, 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 Olloniego is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%83%83%84%84%86%78%77%82%86%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Olloniego

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

Maximum UV Index Levels in Olloniego for December

The chart shows the monthly maximum UV Index (UVI) for Olloniego 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 Olloniego typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689111097632
Data source: Olloniego 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 Olloniego Compares to Other Months

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

This table compares monthly weather conditions in Olloniego, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)94 mm (3.7 inches)87%low
February Weather7°C (45°F)106 mm (4.2 inches)85%moderate
March Weather8°C (46°F)100 mm (3.9 inches)83%high
April Weather10°C (50°F)110 mm (4.3 inches)83%very high
May Weather13°C (55°F)118 mm (4.6 inches)84%very high
June Weather15°C (59°F)151 mm (6.0 inches)84%extreme
July Weather17°C (63°F)96 mm (3.8 inches)86%very high
August Weather17°C (63°F)92 mm (3.6 inches)78%very high
September Weather15°C (60°F)92 mm (3.6 inches)77%high
October Weather12°C (54°F)105 mm (4.1 inches)82%high
November Weather8°C (47°F)148 mm (5.8 inches)86%moderate
December Weather7°C (45°F)151 mm (5.9 inches)87%low

Compare Olloniego's Climate with Cities Worldwide