December Weather in Santiago de Compostela, Spain

Last updated: February 6, 2025

In December, Santiago de Compostela, Spain experiences a cool and damp climate, with an average temperature of approximately 10°C (50°F). Daily highs can reach a pleasant 17°C (63°F), making for some relatively milder days, while evenings can be brisk, dipping as low as -1°C (31°F). The month is characterized by high humidity levels at around 85%, contributing to a generally chilly feel. Rain is a frequent visitor, with 169 mm (6.7 in) of precipitation spread across 17 days—perfect for cozy indoor activities or enjoying the city's charming atmosphere under an umbrella.

December Temperature in Santiago de Compostela

In Santiago de Compostela, December marks a transitional period, with temperatures reflecting the chill of winter. The month begins with a minimum of -1°C (31°F), gradually giving way to an average of 10°C (50°F), peaking at a maximum of 17°C (63°F). This slight drop in temperatures compared to the milder November hints at the onset of the colder season. Relative to the preceding autumn months, December’s climate tends to be cooler and more subdued, while still offering occasional mild days that invite residents and travelers alike to explore the city's rich history and stunning architecture. As the year closes, the crisp air and brisk winds create a unique charm, making this a picturesque time to visit.

December Weather in Santiago de Compostela: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santiago de Compostela, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464950535861656563585149
Data source: Temperature data for Santiago de Compostela 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 Santiago de Compostela

December in Santiago de Compostela marks the climax of the wet season, with precipitation reaching a hefty 169 mm (6.7 in), making it the wettest month of the year. This month is characterized by frequent rain, occurring on approximately 17 days, which significantly contributes to the overall annual rainfall. The trend shows a gradual increase in precipitation from earlier months, culminating in December's high levels, illustrating how the region transforms as winter sets in. Following November's substantial 150 mm (5.9 in), December's rainfall not only underscores the city's reputation for damp weather but also enriches its lush, green landscapes, providing a vibrant backdrop against the often overcast skies. As temperatures drop, the persistent drizzle creates a cozy atmosphere, inviting locals and visitors alike to indulge in the warmth of Santiago's cafes and cultural sites.

December Precipitation Trends in Santiago de Compostela

The chart displays monthly precipitation patterns in Santiago de Compostela, 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.
JanFebMarAprMayJunJulAugSepOctNovDec971241361128073323655105150169
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santiago de Compostela

In December, Santiago de Compostela experiences a notable increase in humidity, peaking at 85%. This rise is part of a consistent trend observed throughout the year, where humidity levels remain relatively high, often oscillating between 82% and 84% from January to November. While the summer months of July and August see a slight dip to 82% and 78%, respectively, the winter months bring a resurgence. December's higher humidity can create a chillier atmosphere, enhancing the experience of the city's lush landscapes and historic architecture wrapped in winter’s embrace. This seasonal shift highlights the region's maritime climate, characterized by dampness, making Santiago a uniquely atmospheric destination during the colder months.

December Average Humidity in Santiago de Compostela

This chart illustrates the average monthly humidity levels in Santiago de Compostela, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
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 Santiago de Compostela

In Santiago de Compostela, December marks a return to low UV Index levels, with a rating of 2 that allows for a generous burn time of 45 minutes under the sun. This drop follows a steep rise during the summer months, peaking in June with an intense UV Index of 10, where sun exposure was critical to monitor. As the calendar transitions from the sun-soaked heights of summer and autumn to the cooler winter days, residents and visitors can enjoy the outdoors without as much concern for UV radiation. Overall, December's low exposure category suggests this is an ideal time for enjoying the city's historic charm while basking in the milder sun. For more information on the UV Index throughout the year, check out Santiago de Compostela UV Index.

Maximum UV Index Levels in Santiago de Compostela for December

The chart shows the monthly maximum UV Index (UVI) for Santiago de Compostela 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.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997632
Data source: Santiago de Compostela 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.

December Sunshine in Santiago de Compostela

In Santiago de Compostela, December greets visitors with a gentle embrace of 202 hours of sunshine, a cozy wrap-up to the year as the days shorten and the chill of winter sets in. This month, while not the sunniest, reflects a consistent trend of gradually diminishing daylight, following the peak brightness of July with its impressive 414 hours. As the calendar turns from autumn to winter, the city's sunlit moments wane from a robust 394 hours in May to December's quieter glow. Despite the dip in hours, Santiago's charm remains unmistakable, inviting exploration and warmth during the festive season.

Monthly Sunshine Duration in Santiago de Compostela: December Highlighted

The December sunshine duration represents the total number of hours Santiago de Compostela experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec171h234h303h342h394h391h414h385h339h298h229h202h
Data source: Santiago de Compostela December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Santiago de Compostela During December

When considering the likelihood of sunny weather in December in Santiago de Compostela, the prospects appear moderate, with a 33% chance of sunshine. This figure sits slightly above the sunniest months of January and May but notably below the more radiant condiments of March and August, where chances soar to 54% and 48%, respectively. Overall, the trend suggests that December is part of a generally overcast and damp season, typical for this region. However, it remains consistent with the year's pattern of fluctuating sun chances, offering a glimmer of hope for those seeking a sunny winter respite amidst a backdrop of approaching rain.

Percentage of Sunny Days in December in Santiago de Compostela

The chart illustrates the percentage of sunny days in Santiago de Compostela throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Santiago de Compostela experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%19%54%38%34%43%41%48%32%37%47%33%
Data source: Santiago de Compostela December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Santiago de Compostela in December

As December unfolds in Santiago de Compostela, daylight lingers for about 9 hours, mirroring the shorter days characteristic of both January and November. This gradual decline in daylight duration from the long, vibrant days of June, which boast 15 hours of sunlight, creates a rhythmic ebb and flow throughout the year. Following a peak in spring and summer, the daylight hours transition back to a more subdued length, reinforcing the cozy, introspective atmosphere of the winter months. The return to 9 hours in December signals a time for reflection and warmth as the city embraces the festive spirit of the season.

Average Daylight Hours in Santiago de Compostela for December

The chart illustrates the variation in daylight duration in Santiago de Compostela throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 24m10h 31m11h 57m13h 25m14h 39m15h 17m14h 57m13h 51m12h 26m10h 59m9h 42m9h 3m
Data source: Santiago de Compostela daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Santiago de Compostela

In Santiago de Compostela, December marks a return to average wind speeds of 4.3 m/s (10 mph), mirroring January's conditions. This increase brings a refreshing chill as the year draws to a close, contrasting with the milder winds observed in the preceding months. Notably, wind speeds peaked in February at 5.4 m/s (12 mph), while a gentle lull was felt from September through October, where speeds dipped to a low of 2.9 m/s (7 mph). As the city transitions into winter, these early cold winds can invigorate both the landscape and the spirit, inviting locals and visitors alike to embrace the beauty of these historic streets in a brisk breeze.

Average December Wind Speed in Santiago de Compostela

The chart displays monthly wind speed patterns in Santiago de Compostela, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.35.43.63.23.93.83.33.12.93.33.74.3 m/s
Data source: Santiago de Compostela December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Santiago de Compostela Compares to Other Months

The weather in Santiago de Compostela changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Santiago de Compostela and find detailed weather information for every month.

In December, the weather in Santiago de Compostela features a mild average temperature of 10°C (50°F), with maximums reaching 17°C (63°F) and minimums dropping to -1°C (31°F). The month is quite wet, with 169 mm (6.7 in) of precipitation spread over 17 days and high humidity at 85%. In contrast, January sees slightly cooler conditions, with an average temperature of 8°C (47°F) and a lower maximum of 20°C (68°F). Precipitation decreases significantly to 97 mm (3.8 in) over 11 days, accompanied by a similar humidity level of 84%. For more detailed insights, check out Santiago de Compostela weather in January.

December and February both experience a minimum temperature of -1°C (31°F) and maintain an average temperature of 10°C (50°F). However, February is generally warmer than December, with a maximum temperature reaching 22°C (71°F) compared to December's maximum of 17°C (63°F). Precipitation levels also differ, as December sees 169 mm (6.7 in) over 17 days, whereas February has a reduced precipitation of 124 mm (4.9 in) across 13 days. Humidity is slightly lower in February at 83%, compared to December's 85%. For more details on the month of February, you can visit Santiago de Compostela weather in February.

In comparing the weather of December and March, both months feature a minimum temperature of around -1°C (31°F) and an average temperature of 10°C (50°F). However, March experiences a notable increase in maximum temperatures, reaching up to 24°C (75°F), compared to December's peak of 17°C (63°F). Additionally, precipitation is slightly lower in March, totaling 136 mm (5.4 in) over 14 days, compared to December's 169 mm (6.7 in) over 17 days. Humidity also decreases marginally in March, averaging 82% versus 85% in December. For more detailed insights on weather conditions in March, you can refer to Santiago de Compostela weather in March.

When comparing December and April weather, December tends to be cooler with average temperatures around 10°C (50°F), where highs can reach 17°C (63°F) but lows often drop to -1°C (31°F). The month experiences significant rainfall, with about 169 mm (6.7 in) of precipitation over 17 days and a humidity level of 85%. In contrast, April brings milder conditions with an average temperature of 12°C (53°F), and highs reaching up to 26°C (79°F). This month is drier, featuring only 112 mm (4.4 in) of precipitation across 14 days and slightly lower humidity at 83%. For more details on the weather specific to April, you can check Santiago de Compostela weather in April.

In December, the weather is notably cooler, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 17°C (63°F), and an average of 10°C (50°F). This month also sees significant precipitation at 169 mm (6.7 in) over 17 days, coupled with high humidity levels at 85%. In contrast, May offers a more temperate climate, with temperatures starting from a minimum of 2°C (36°F) and peaking at 30°C (86°F), averaging around 14°C (58°F). Precipitation decreases to 80 mm (3.2 in) across 11 days, while humidity holds steady at approximately 83%. For more detailed information, you can check Santiago de Compostela weather in May.

In December, the weather in Santiago de Compostela is characterized by cool temperatures, with a minimum of -1°C (31°F) and an average of 10°C (50°F), peaking at a maximum of 17°C (63°F). During this month, the city experiences high humidity levels at 85% and significant rainfall, totaling 169 mm (6.7 in) over approximately 17 days. In contrast, June brings a more temperate climate, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 31°C (88°F), averaging around 16°C (61°F). Rainfall decreases significantly to 73 mm (2.9 in) over about 12 days, and humidity is slightly lower at 83%. This shift highlights the stark seasonal differences in weather patterns. For more detailed information, you can check Santiago de Compostela weather in June.

December and July in Santiago de Compostela present quite contrasting weather experiences. In December, temperatures range from a chilly minimum of -1°C (31°F) to a milder maximum of 17°C (63°F), with an average of 10°C (50°F). This month sees considerable precipitation, totaling 169 mm (6.7 in) over approximately 17 days, paired with high humidity levels of 85%. In contrast, July offers a much warmer climate, with temperatures varying from a minimum of 8°C (47°F) to a peak of 32°C (89°F), averaging around 18°C (65°F). The month is much drier, receiving only 32 mm (1.3 in) of rainfall over about 6 days, and a slightly lower humidity of 82%. For more detailed insights, check out Santiago de Compostela weather in July.

The weather in December and August presents stark contrasts. December typically sees much cooler temperatures, with a minimum of -1°C (31°F) and an average of 10°C (50°F), while August enjoys warmer conditions, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 33°C (91°F). Precipitation is also significantly higher in December, with 169 mm (6.7 in) spread over 17 days, compared to August's much lighter 36 mm (1.4 in) over just 7 days. Humidity levels in December are notably higher at 85%, while August experiences a more comfortable 78%. For those interested in more details about weather patterns in August, visit Santiago de Compostela weather in August.

In comparing the weather of December and September, notable contrasts emerge. December experiences cooler temperatures, with a minimum of -1°C (31°F) and an average of 10°C (50°F), while September boasts a milder climate, peaking at a maximum of 32°C (90°F) and an average of 17°C (63°F). Precipitation is also more frequent in December, with 169 mm (6.7 in) falling over 17 days, compared to September's relatively drier conditions, which see only 55 mm (2.2 in) across 10 days. Humidity levels are higher in December at 85%, compared to September's 79%, contributing to a more damp and chilly atmosphere during the winter month. For a detailed overview, you can check Santiago de Compostela weather in September.

When comparing the weather in December and October, noticeable differences emerge. December experiences cooler temperatures with averages around 10°C (50°F), while October tends to be milder, averaging 14°C (58°F) and often reaching highs of 30°C (86°F). Precipitation is more common in December, with 169 mm (6.7 in) over 17 days, compared to October's 105 mm (4.1 in) across 12 days. Additionally, December's humidity is slightly higher at 85%, compared to 82% in October. For more specific details about October's weather in this region, you can refer to Santiago de Compostela weather in October.

In comparing the weather of December and November, December tends to be slightly cooler, with average temperatures ranging from a minimum of -1°C (31°F) to a maximum of 17°C (63°F), while November features a milder range, with lows around 1°C (33°F) and highs reaching 20°C (68°F). Precipitation increases in December, totaling 169 mm (6.7 in) over 17 days, compared to November's 150 mm (5.9 in) over 16 days. Additionally, December's humidity is marginally higher at 85%, compared to November's 84%. For a more detailed look at November's weather, you can visit Santiago de Compostela weather in November.

Compare Santiago de Compostela's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Santiago de Compostela

December in Santiago de Compostela marks the onset of cooler, wetter weather as the city transitions into winter. With temperatures often hovering around a comfortable 10°C but dipping below freezing at night, residents and visitors alike should prepare for brisk days and chilly nights. Rain is a frequent visitor, with about 17 days of precipitation, contributing to the city's lush green landscapes. Humidity levels soar to around 85%, adding to the brisk winter air. This distinctly damp and cool period sets December apart from the milder and drier months earlier in the year, making it a unique time to experience the city’s festive charm. For a more in-depth look at the weather patterns throughout the year, visit Santiago de Compostela Climate.