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December Weather in Ona, Spain

Last updated: August 27, 2025

In December, the average temperature in Ona, Spain hovers around 6°C (43°F). You can expect minimum temperatures to dip to -4°C (25°F) while reveling in maximum highs of up to 16°C (61°F). With an average precipitation of 63 mm (2.5 in) spread across 13 days, and humidity levels at a notable 85%, be prepared for a chilly, damp atmosphere!

December Temperature in Ona

In December in Ona, the average temperature is 6°C (43°F), with maximums reaching 16°C (61°F) and minimums dropping as low as -4°C (25°F). This varied climate makes Ona an ideal destination for travelers seeking both cool and mild weather experiences.

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

The chart illustrates December temperature patterns in Ona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ona, December typically has an average temperature of 6°C (43°F), with highs reaching up to 16°C (61°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec394446495662666662554643
Data source: Temperature data for Ona 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 Ona

In Ona in December, the precipitation amount is 63 mm (2.5 in) spread over 13 days.

December Precipitation Trends in Ona

The chart displays monthly precipitation patterns in Ona, 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 Ona, December typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec545458785569383138617363
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ona

In Ona in December, humidity is 85%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making travel feel more uncomfortable and limiting your enjoyment of the sights as you navigate the wet, brisk air.

December Average Humidity in Ona

This chart illustrates the average monthly humidity levels in Ona, 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 Ona 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 Ona

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

Maximum UV Index Levels in Ona for December

The chart shows the monthly maximum UV Index (UVI) for Ona 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 Ona typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689111098632
Data source: Ona 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 Ona Compares to Other Months

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

This table compares monthly weather conditions in Ona, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)54 mm (2.1 inches)85%low
February Weather6°C (44°F)54 mm (2.1 inches)83%moderate
March Weather8°C (46°F)58 mm (2.3 inches)82%high
April Weather10°C (50°F)78 mm (3.1 inches)81%very high
May Weather13°C (56°F)55 mm (2.2 inches)81%very high
June Weather17°C (62°F)69 mm (2.7 inches)83%extreme
July Weather19°C (66°F)38 mm (1.5 inches)87%very high
August Weather19°C (66°F)30 mm (1.2 inches)82%very high
September Weather17°C (62°F)38 mm (1.5 inches)77%very high
October Weather13°C (55°F)61 mm (2.4 inches)80%high
November Weather8°C (46°F)73 mm (2.9 inches)83%moderate
December Weather6°C (43°F)63 mm (2.5 inches)85%low

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