December Weather in Santa Barbara, Spain

Last updated: February 6, 2025

Experience the enchanting December weather in Santa Barbara, Spain, where the mild climate offers a delightful escape. With daytime temperatures peaking at 19°C (67°F) and a cozy average of 10°C (51°F), the cool evenings see lows of around 1°C (35°F). However, don't forget your umbrella, as the area receives about 31 mm (1.2 in) of precipitation over 4 days throughout the month. The humidity levels hover around 79%, creating a refreshing atmosphere perfect for exploring the charming streets and vibrant culture of this captivating coastal town.

December Temperature in Santa Barbara

In December, Santa Barbara, Spain, welcomes the winter season with a gentle chill, where temperatures typically range from a minimum of 1°C (35°F) to a comfortable maximum of 19°C (67°F). The average temperature hovers around 10°C (51°F), marking a gradual decline from the warmer fall months. This month signals a transition, with evenings cooling off significantly compared to the mild temperatures of late autumn. As the year nears its end, December provides a refreshing atmosphere perfect for leisurely exploration and enjoying the region's scenic beauty without the sweltering heat of summer. The patterns seen throughout the year illustrate a noteworthy shift towards cooler climates, making Santa Barbara a unique winter escape.

December Weather in Santa Barbara: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santa Barbara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec475153566471777771645550
Data source: Temperature data for Santa Barbara generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Santa Barbara

In December, Santa Barbara experiences a moderate precipitation total of 31 mm (1.2 in), with rain falling on just 4 days throughout the month. This shows a notable decrease compared to the wetter months of April and October, which both see significantly higher rainfall of 78 mm and 71 mm respectively. Interestingly, December's precipitation aligns more closely with the late summer months, like July and August, hinting at a gradual tapering off of rainfall as winter approaches. The trend reveals a clear shift towards drier conditions as the year wraps up, making the brief December showers a refreshing reprieve in the otherwise milder winter season.

December Precipitation Trends in Santa Barbara

The chart displays monthly precipitation patterns in Santa Barbara, 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.
JanFebMarAprMayJunJulAugSepOctNovDec632341785036174565716531
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santa Barbara

In Santa Barbara, Spain, December brings a notable consistency in humidity, maintaining a steady 79% akin to the prior month of November. As the year proceeds, a gradual decline in humidity from 79% in January to 64% during the warm summer months of July and August suggests a shift towards a drier climate. However, the return of higher humidity levels in the fall and winter months indicates a seasonal pattern, with December mirroring the increase seen in October and November. This cyclical variation highlights Santa Barbara's transition from drier summers to more humid winters, creating a unique climate that residents and visitors alike can appreciate.

December Average Humidity in Santa Barbara

This chart illustrates the average monthly humidity levels in Santa Barbara, 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.
JanFebMarAprMayJunJulAugSepOctNovDec79%74%71%69%66%65%64%64%68%77%79%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santa Barbara

In December, Santa Barbara, Spain, experiences a notable decrease in UV exposure with an index of 2, classified as low. This marks a shift from the extreme UV levels seen in the summer months, where even brief sun exposure requires caution. With a burn time of 45 minutes, residents and visitors can enjoy the mild winter sun without the heightened risk of skin damage. The transition from summer's intense rays (with July and June peaking at indices of 10 and 11 respectively) to December's gentler light illustrates the region's dynamic climate. For those planning time outdoors, it's still wise to practice sun safety, but overall, December offers a more relaxed UV situation. For more details on UV levels throughout the year, visit Santa Barbara UV Index.

Maximum UV Index Levels in Santa Barbara for December

The chart shows the monthly maximum UV Index (UVI) for Santa Barbara 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.
JanFebMarAprMayJunJulAugSepOctNovDec34589111098642
Data source: Santa Barbara 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 Santa Barbara

As the year winds down, December in Santa Barbara, Spain, continues to bask in a pleasant glow with 265 hours of sunshine, maintaining a bright ambiance that contrasts with the cooler temperatures. While this month experiences a slight dip compared to the sun-drenched summer, it still outshines January's 208 hours and positions itself favorably alongside February's 269 hours. The sunny trend is evident throughout the year, peaking during the summer months of June and July, where hours reach a vibrant 412 and 426 respectively. This gradual decline from the summer's peak, while still keeping December fairly bright, showcases Santa Barbara's consistent charm, where even winter months hold onto a warm spirit bathed in golden rays.

Monthly Sunshine Duration in Santa Barbara: December Highlighted

The December sunshine duration represents the total number of hours Santa Barbara 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.
JanFebMarAprMayJunJulAugSepOctNovDec208h269h330h341h408h412h426h395h341h318h261h265h
Data source: Santa Barbara December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Santa Barbara During December

In Santa Barbara, Spain, December brings a moderate likelihood of sunny weather, with a 55% chance of clear skies. This marks a slight increase compared to November's 53%, suggesting a positive trend as the year winds down. Throughout the colder months, sunshine tendencies exhibit some variation, with January peaking at 54% and March soaring to 57%. While December's chances remain relatively stable, the overall trend reveals that the region generally enjoys more sunny days as it transitions into the spring months. This consistent warmth makes Santa Barbara an appealing destination even as winter settles in.

Percentage of Sunny Days in December in Santa Barbara

The chart illustrates the percentage of sunny days in Santa Barbara 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 Santa Barbara experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%34%57%40%43%52%70%52%40%51%53%55%
Data source: Santa Barbara December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Santa Barbara in December

In Santa Barbara, Spain, the daylight duration experiences a captivating ebb and flow throughout the year, peaking in summer and dipping again in winter. Starting from January with just 9 hours of daylight, the days gradually lengthen, reaching a vibrant 14 hours by May and peaking at 15 hours in June. As summer wanes, the daylight begins to recede, creating a gentle rhythm with 13 hours in August and tapering down to 12 hours in September. The transition into autumn sees the sunlight reducing further, with 11 hours in October and 9 hours again by December, mirroring the winter's start. This pattern illustrates a clear seasonal cycle, inviting residents and visitors alike to savor the sun-soaked months before embracing the coziness of shorter winter days.

Average Daylight Hours in Santa Barbara for December

The chart illustrates the variation in daylight duration in Santa Barbara throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 36m10h 38m11h 57m13h 18m14h 27m15h 1m14h 43m13h 42m12h 25m11h 4m9h 54m9h 17m
Data source: Santa Barbara daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Santa Barbara

In December, the winds of Santa Barbara, Spain, embrace a refreshing average speed of 3.6 m/s (8 mph), standing out as a mild respite during the seasonal shift. The month marks a gentle transition from the brisk November gusts, which average 4.5 m/s, highlighting an overall trend of fluctuating winds throughout the year. As winter deepens, December’s breezes remain more moderate compared to the earlier months, particularly April and August, which see the lightest winds at 2.9 m/s. This month’s conditions pave the way for a unique blend of serenity and occasional vigor, captivating both locals and visitors alike with its inviting coastal charm.

Average December Wind Speed in Santa Barbara

The chart displays monthly wind speed patterns in Santa Barbara, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.33.23.22.93.22.93.42.92.72.64.53.6 m/s
Data source: Santa Barbara December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Santa Barbara Compares to Other Months

The weather in Santa Barbara 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 Santa Barbara and find detailed weather information for every month.

December typically presents milder temperatures, averaging around 10°C (51°F) with a minimum of 1°C (35°F) and a maximum of 19°C (67°F). In contrast, January brings slightly cooler conditions with an average temperature of 8°C (47°F), dipping to a minimum of -2°C (29°F) and reaching up to 21°C (70°F). While both months experience the same number of rainy days (four), January sees significantly higher precipitation at 63 mm (2.5 in), compared to December's 31 mm (1.2 in). Notably, humidity remains consistent in both months at 79%, creating a similar feel in terms of moisture levels. For a more detailed look at January's weather in Santa Barbara, you can visit Santa Barbara weather in January.

December and February offer interesting contrasts in weather, despite their similar average temperatures. In December, temperatures range from a minimum of 1°C (35°F) to a maximum of 19°C (67°F), while February sees slightly cooler nights, with a minimum of -1°C (31°F), yet it can reach a warmer daytime high of 21°C (70°F). December experiences higher humidity at 79% compared to February's 74%, and slightly more precipitation—31 mm over four days in December versus 23 mm over five days in February. For more detailed insights into February weather, you can check Santa Barbara weather in February.

In December, temperatures in Santa Barbara range from a minimum of 1°C (35°F) to a maximum of 19°C (67°F), with an average temperature of 10°C (51°F). The month experiences about 31 mm (1.2 in) of precipitation over 4 days, contributing to a relatively high humidity level of 79%. By contrast, March sees slightly warmer temperatures, with a minimum of 3°C (38°F) and a maximum of 22°C (73°F), averaging 12°C (54°F). Precipitation increases to 41 mm (1.6 in) over 7 days, although the humidity drops to 71%. This transition from December to March highlights a gradual warming trend and a modest increase in rainfall, making March a more vibrant and lush month. For more detailed insights, you can visit Santa Barbara weather in March.

In comparing December and April weather, December offers cooler temperatures with a minimum of 1°C (35°F) and an average of 10°C (51°F), reaching a maximum of 19°C (67°F). This month experiences relatively low precipitation, totaling 31 mm (1.2 in) over just 4 days, along with a higher humidity of 79%. In contrast, April brings milder temperatures, with a minimum of 2°C (36°F) and an average of 14°C (57°F), peaking at 24°C (76°F). However, it sees increased rainfall, averaging 78 mm (3.1 in) spread across 11 days, and a lower humidity level of 69%. For more specifics on April weather, you can check Santa Barbara weather in April.

In December, the weather tends to be cooler with minimum temperatures around 1°C (35°F) and average temperatures reaching 10°C (51°F), while the maximum temperature can go up to 19°C (67°F). The month experiences about 31 mm (1.2 in) of precipitation over approximately 4 days, accompanied by higher humidity levels at 79%. In contrast, May offers a much warmer climate, with minimum temperatures starting at 7°C (46°F) and average temperatures climbing to 18°C (64°F), peaking at 30°C (86°F). Additionally, May sees increased rainfall at 50 mm (2.0 in) over about 6 days, but with lower humidity at 66%. For a more detailed overview of what May holds, you can check Santa Barbara weather in May.

In December, the weather is significantly cooler, with temperatures ranging from a minimum of 1°C (35°F) to a pleasant average of 10°C (51°F) and a maximum of 19°C (67°F). The month sees about 31 mm (1.2 in) of precipitation over roughly 4 days and maintains a high humidity level of 79%. In contrast, June offers a much warmer climate, with temperatures starting at a minimum of 11°C (52°F) and peaking at an average of 22°C (71°F), going up to a maximum of 35°C (95°F). Precipitation slightly increases to 36 mm (1.4 in) over about 6 days, but the humidity drops to a more comfortable 65%. For more details on June weather, you can check Santa Barbara weather in June.

December and July present strikingly different weather patterns. In December, temperatures range from a chilly 1°C (35°F) at night to a mild 19°C (67°F) during the day, with an average of 10°C (51°F). The month sees about 31 mm (1.2 in) of precipitation over four days, accompanied by relatively high humidity at 79%. In contrast, July enjoys much warmer temperatures, with overnight lows of 15°C (59°F) and daytime highs reaching up to 33°C (91°F), averaging 25°C (77°F). Precipitation is minimal in July, with just 17 mm (0.7 in) spread across four days, and humidity decreases to 64%. The seasonal shift highlights a significant transition from the cool, damp days of December to the warm, dry climate of July, making it an ideal time for outdoor activities. For those interested in more details, check out Santa Barbara weather in July.

When comparing the weather in December and August, significant differences emerge. December typically experiences cooler temperatures, with a minimum of 1°C (35°F) and an average of 10°C (51°F), while August boasts much warmer conditions, averaging around 25°C (78°F) with a maximum of 35°C (94°F). In terms of precipitation, December sees 31 mm (1.2 in) over about 4 days, whereas August has slightly more with 45 mm (1.8 in), spread over 6 days. Additionally, December's humidity is higher at 79%, contributing to a chillier atmosphere, compared to the lower humidity of 64% in August. For more insights, you can check Santa Barbara weather in August.

December weather is noticeably cooler than September, with average temperatures ranging from a minimum of 1°C (35°F) to a maximum of 19°C (67°F), compared to September’s range of 11°C (53°F) to 30°C (87°F). Additionally, September experiences more precipitation, with 65 mm (2.5 in) over about 9 days, while December has only 31 mm (1.2 in) over 4 days. The humidity is higher in December at 79%, compared to September's 68%, contributing to a more damp and chilly feel during the winter month. For more details on September weather, visit Santa Barbara weather in September.

In comparing the weather between October and December, we observe notable differences in temperature and precipitation patterns. October boasts warmer averages, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 28°C (83°F), while December sees cooler conditions with highs of only 19°C (67°F) and lows down to 1°C (35°F). Additionally, October experiences greater rainfall, totaling 71 mm (2.8 in) across five days, compared to December's 31 mm (1.2 in) over four days. Humidity levels remain similar between the two months, with December at 79% and October slightly lower at 77%. For more details on weather specifics in October, you can visit Santa Barbara weather in October.

In comparing the weather between November and December, November tends to be warmer overall, with average temperatures reaching about 13°C (55°F) and maximums hitting 24°C (76°F). In contrast, December's temperatures average around 10°C (51°F), with maximums capped at 19°C (67°F). November also experiences more precipitation, with 65 mm (2.6 in) over 7 days, whereas December records only 31 mm (1.2 in) across 4 days. However, both months see similar humidity levels at 79%. For a more in-depth look at the conditions during November, you can check Santa Barbara weather in November.

Compare Santa Barbara's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Santa Barbara

As December unfolds in Santa Barbara, the weather brings a refreshing shift compared to the warmer summer months. Temperatures cool down, averaging around 10°C (51°F), with maximum highs reaching 19°C (67°F), making it a perfect time for crisp outdoor activities. The 79% humidity adds a touch of moisture to the air, contributing to the 31 mm (1.2 in) of precipitation expected over just a few days. This contrasts sharply with the arid conditions seen in the summer, providing a welcome change for residents and visitors alike. For those looking to understand more about the region's diverse climates throughout the year, detailed insights can be found at Santa Barbara Climate.