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December Weather in Rianxo, Spain

Last updated: August 27, 2025

In December, the average temperature in Rianxo, Spain hovers around 10°C (51°F). Temperature can dip to a chilly 0°C (32°F) and reach a maximum of 19°C (66°F). With 193 mm (7.6 in) of precipitation spread across 17 days, expect a fair amount of wet weather during this time. Additionally, the average humidity sits at a notable 85%, creating a damp and cool atmosphere.

December Temperature in Rianxo

In December in Rianxo, the average temperature is 10°C (51°F). Maximum temperatures can reach 19°C (66°F), while minimums can drop as low as 0°C (32°F). Be prepared for varying weather conditions, making it a great time for layering your wardrobe while exploring the area.

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

The chart illustrates December temperature patterns in Rianxo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rianxo, December typically has an average temperature of 10°C (51°F), with highs reaching up to 19°C (66°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec485152556063676865605351
Data source: Temperature data for Rianxo 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 Rianxo

In Rianxo in December, the total precipitation amount is 193 mm (7.6 in), spread over a period of 17 days.

December Precipitation Trends in Rianxo

The chart displays monthly precipitation patterns in Rianxo, 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 Rianxo, December typically receives around 193 mm (7.6 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec1091451501279366293350125172193
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rianxo

In Rianxo in December, humidity is 85%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill enveloping you, making travel quite uncomfortable as your clothes cling to your skin and the air feels heavy, often leaving you longing for a dry, warmer environment.

December Average Humidity in Rianxo

This chart illustrates the average monthly humidity levels in Rianxo, 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 Rianxo is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%82%83%83%83%82%78%79%82%84%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rianxo

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

Maximum UV Index Levels in Rianxo for December

The chart shows the monthly maximum UV Index (UVI) for Rianxo 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 Rianxo typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997632
Data source: Rianxo 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 Rianxo Compares to Other Months

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

This table compares monthly weather conditions in Rianxo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)109 mm (4.3 inches)84%low
February Weather10°C (51°F)145 mm (5.7 inches)83%moderate
March Weather11°C (52°F)149 mm (5.9 inches)82%high
April Weather13°C (55°F)127 mm (5.0 inches)83%very high
May Weather16°C (60°F)93 mm (3.7 inches)83%very high
June Weather17°C (63°F)66 mm (2.6 inches)83%very high
July Weather20°C (68°F)29 mm (1.1 inches)82%very high
August Weather20°C (68°F)33 mm (1.3 inches)78%very high
September Weather19°C (66°F)49 mm (1.9 inches)79%high
October Weather15°C (60°F)125 mm (4.9 inches)82%high
November Weather12°C (53°F)172 mm (6.8 inches)84%moderate
December Weather10°C (51°F)193 mm (7.6 inches)85%low

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