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December Weather in Castro de Rei, Spain

Last updated: August 27, 2025

In Castro de Rei, Spain, the average temperature in December hovers around 8°C (47°F). Visitors can expect a varied climate, with minimum temperatures dipping to -1°C (30°F) and highs reaching 16°C (61°F). Prepare for some wet days, as precipitation averages 169 mm (6.6 in) over 16 days, accompanied by a high average humidity of 85%.

December Temperature in Castro de Rei

In December, in Castro de Rei, the average temperature is 8°C (47°F), with maximums reaching 16°C (61°F) and minimums dropping as low as -1°C (30°F). Travelers should prepare for cool weather and bring layers to stay comfortable during their visit.

December Weather in Castro de Rei: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Castro de Rei, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castro de Rei, December typically has an average temperature of 8°C (47°F), with highs reaching up to 16°C (61°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec444748515660646461564947
Data source: Temperature data for Castro de Rei 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 Castro de Rei

In Castro de Rei in December, the precipitation amount reaches 169 mm (6.6 in) over the course of 16 days.

December Precipitation Trends in Castro de Rei

The chart displays monthly precipitation patterns in Castro de Rei, 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 Castro de Rei, December typically receives around 169 mm (6.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec91120128999179354659108136169
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Castro de Rei

In Castro de Rei in December humidity is 85%. With an average temperature of 8°C (47°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities feel less refreshing and more uncomfortable for traveling.

December Average Humidity in Castro de Rei

This chart illustrates the average monthly humidity levels in Castro de Rei, 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 Castro de Rei 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 Castro de Rei

In Castro de Rei 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 Castro de Rei, you can visit Hourly UV Index in Castro de Rei.

Maximum UV Index Levels in Castro de Rei for December

The chart shows the monthly maximum UV Index (UVI) for Castro de Rei 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 Castro de Rei typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101097632
Data source: Castro de Rei 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 Castro de Rei Compares to Other Months

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

This table compares monthly weather conditions in Castro de Rei, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)91 mm (3.6 inches)84%low
February Weather8°C (47°F)120 mm (4.7 inches)83%moderate
March Weather9°C (48°F)128 mm (5.1 inches)82%high
April Weather11°C (51°F)99 mm (3.9 inches)83%very high
May Weather13°C (56°F)91 mm (3.6 inches)83%very high
June Weather15°C (60°F)79 mm (3.1 inches)83%very high
July Weather18°C (64°F)35 mm (1.4 inches)82%very high
August Weather18°C (64°F)46 mm (1.8 inches)78%very high
September Weather16°C (62°F)59 mm (2.3 inches)79%high
October Weather13°C (56°F)108 mm (4.2 inches)82%high
November Weather9°C (49°F)136 mm (5.3 inches)84%moderate
December Weather8°C (47°F)169 mm (6.6 inches)85%low

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