December Weather in Santa Barbara, Mexico

Last updated: April 22, 2025

December in Santa Barbara, Mexico offers a delightful weather experience characterized by a maximum temperature of 29°C (85°F), providing a perfect backdrop for outdoor activities. With an average temperature of 15°C (60°F) and a minimum of 0°C (33°F), day-to-night transitions can be quite refreshing. Exceptionally, precipitation is minimal, amounting to only 5 mm (0.2 in), and remarkably, there are no rainy days this month, ensuring plenty of sunshine. The humidity hovers around a balmy 91%, creating an enticing tropical ambiance that enhances the charm of this coastal destination. Enjoy the perfect blend of warmth and comfort during this enchanting winter month!

December Temperature in Santa Barbara

In December, Santa Barbara, Mexico experiences a charming transition into winter, with temperatures that reflect the region's mild climate. The month begins with minimums around 0°C (33°F) and peaks at a comfortable maximum of 29°C (85°F), creating an inviting atmosphere for visitors. The average temperature hovers around 15°C (60°F), striking a perfect balance for outdoor activities and exploration. As the year draws to a close, the region showcases gradually decreasing minimum temperatures, similar to the trend observed since November, while the daytime warmth still beckons beachgoers and adventurers alike. Overall, December offers a delightful preview of the mild winter that characterizes this beautiful coastal destination.

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.
JanFebMarAprMayJunJulAugSepOctNovDec596367727471707068666259
Data source: Temperature data for Santa Barbara 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 Santa Barbara

In December, Santa Barbara, Mexico experiences a notable decrease in precipitation, with only 5 mm (0.2 in) of rainfall throughout the month, marking it as one of the driest periods of the year. Impressively, there are no recorded precipitation days in December, which contrasts sharply with the rainy peak seen in September at 109 mm (4.3 in) over 18 days. As the year winds down, this trend of diminishing rainfall reflects a shift from the earlier months where showers are more prevalent, particularly from June through September, when the area receives the bulk of its annual precipitation. December's dry spell sets the stage for a crisp and clear start to the new year, highlighting the region's transition into a drier 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.
JanFebMarAprMayJunJulAugSepOctNovDec65131734102757610962205
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 December, Santa Barbara, Mexico, experiences a significant humidity level of 91%, maintaining its status as one of the year's more humid months. This figure aligns closely with the preceding months of October and November, which also feature high humidity at 92% and 91%, respectively. A notable trend emerges as the year progresses; while the early months of January and February boast even higher humidity levels of 88% and 86%, there's a steady decrease during the mid-year, reaching a low of 72% in July. However, as the calendar turns toward the end of the year, humidity levels rise again, showcasing a characteristic seasonal cycle that envelops Santa Barbara in a moist, tropical embrace during the latter part of the year.

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.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santa Barbara

In Santa Barbara, Mexico, the UV Index reaches its peak during the summer months, fluctuating between a scorching 14 to 15 from May through September, categorized as extreme exposure conditions that demand caution. As the year transitions into December, the index dips to 8, still within the very high exposure category, suggesting that sun safety remains crucial during this period with a burn time of just 15 minutes. Notably, as winter approaches, the trend shows a gradual decrease from November's 9, illustrating the shifting dynamics of UV radiation in this sun-kissed locale. For those planning outdoor activities, it's essential to stay informed about daily UV levels. Learn more about the UV index in Santa Barbara here.

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.
JanFebMarAprMayJunJulAugSepOctNovDec911141415141414141298
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

In the charming enclave of Santa Barbara, Mexico, December radiates a welcoming 275 hours of sunshine, seamlessly closing out the year with vibrant warmth. As the months transition, sunshine hours gradually increase, peaking in the lush days of May with an impressive 330 hours. Following the delightful spring, the summer months maintain high levels of luminosity, ranging from 298 hours in June to 312 hours in July. However, as autumn sets in, the sun begins to retreat slightly, resulting in reduced hours, but December still holds its own against the seasonal ebb. This gradual shift reflects not just a change in weather, but an inviting backdrop for holiday festivities and winter getaways in Santa Barbara. Overall, visitors can count on this coastal gem to offer a bright escape during the winter months.

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.
JanFebMarAprMayJunJulAugSepOctNovDec219h261h306h313h330h298h312h305h270h267h258h275h
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

When considering the likelihood of sunny weather in Santa Barbara, Mexico, December presents a promising prospect with a 63% chance of sunshine. This figure stands out, especially when compared to the more dismal months of June through September, where chances plummet to as low as 14%. Interestingly, December marks a transition from the increasing cloudiness of the summer months, showing a notable uptick in sunshine that is reminiscent of February's lofty 78%. As the year winds down, visitors can look forward to relatively brighter days, making December an appealing choice for enjoying the region's natural beauty and festive atmosphere.

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.
JanFebMarAprMayJunJulAugSepOctNovDec50%78%69%59%48%14%21%29%14%31%43%63%
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

As December unfolds in Santa Barbara, Mexico, the daylight duration gradually decreases, marking the transition into winter. With just 10 hours of daylight, this month's sunshine is a gentle reminder of the shorter days that characterize the season. Observing the trend from earlier months, we see a peak in daylight around May through July, when the sun graces the skies for up to 13 hours a day. Following this burst of brightness, daylight begins to taper off in August, continuing its descent into the year’s end. Despite the shorter days, December’s light still offers a comforting warmth that invites residents and visitors alike to embrace the unique charm of winter in this enchanting coastal town.

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.
JanFebMarAprMayJunJulAugSepOctNovDec11h 1m11h 27m12h 2m12h 37m13h 6m13h 21m13h 13m12h 47m12h 13m11h 38m11h 8m10h 53m
Data source: Santa Barbara daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Santa Barbara

In Santa Barbara, Mexico, December brings a gentle breath of wind, with an average speed of just 1.8 m/s (4 mph), marking it as one of the calmest months of the year. This soft breeze follows the subtle fluctuations observed throughout the year, where wind speeds generally hover around 2.1 to 2.6 m/s from January to March, then maintain a steady pace before dipping steadily in later months. As the year winds down, December's tranquil conditions serve as a contrast to the slightly breezier days of early spring, evoking a serene atmosphere perfect for reflective strolls along the coastline. The overall trend highlights a gradual decline in wind intensity as the season shifts, inviting both locals and visitors to enjoy the lazy charm of winter in Santa Barbara.

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.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.52.62.52.52.02.02.41.82.02.11.8 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.

In December, temperatures in Santa Barbara range from a minimum of 0°C (33°F) to a maximum of 29°C (85°F), with an average of around 15°C (60°F). The month is characterized by very low precipitation, recording only 5 mm (0.2 in) with no rainy days, and a high humidity level of 91%. In contrast, January experiences slightly warmer minimum temperatures at 1°C (34°F) and a maximum of 30°C (87°F), with an average temperature similar to December at 15°C (59°F). Precipitation increases slightly to 6 mm (0.2 in) over one rainy day, and humidity remains moderate at 88%. For a more detailed look at January weather, you can visit Santa Barbara weather in January.

In December, the weather usually features a minimum temperature of 0°C (33°F) and an average of 15°C (60°F), reaching a maximum of 29°C (85°F). This month typically has no days of precipitation, with humidity levels at a high 91%, creating a pleasantly mild atmosphere. In contrast, February offers slightly warmer conditions, with minimum temperatures rising to 2°C (37°F) and an average of 17°C (64°F), peaking at 34°C (93°F). While it experiences a solitary day of precipitation, the humidity decreases slightly to 86%. For more detailed information, you can check Santa Barbara weather in February.

In December, the weather tends to be cooler with a minimum temperature of 0°C (33°F) and an average of 15°C (60°F), while the maximum can reach up to 29°C (85°F). The month is characterized by low precipitation, recording only 5 mm (0.2 in) with no rainy days, coupled with high humidity at 91%. In contrast, March sees warmer temperatures, starting with a minimum of 4°C (39°F) and averaging around 20°C (67°F), peaking at 35°C (95°F). Although March has higher precipitation at 13 mm (0.5 in) over just one rainy day, it enjoys slightly lower humidity at 83%. For more detailed information, you can check Santa Barbara weather in March.

In December, the weather in Santa Barbara features mild temperatures, ranging from a chilly 0°C (33°F) at night to a warm 29°C (85°F) during the day, with an average of 15°C (60°F). The month is characterized by minimal precipitation of just 5 mm (0.2 in) and high humidity at 91%, resulting in a rather damp atmosphere.

In contrast, April brings noticeably warmer temperatures, with nighttime lows of 8°C (46°F) and daytime highs soaring up to 35°C (95°F), averaging around 22°C (72°F). This month sees increased rainfall, accumulating about 17 mm (0.7 in) over four days, while humidity drops to a more comfortable 80%. For a detailed comparison of weather conditions in April, you can visit Santa Barbara weather in April.

In December, the weather is characterized by mild temperatures, with a minimum of 0°C (33°F) and an average of 15°C (60°F), reaching a maximum of 29°C (85°F). The month receives little to no precipitation, averaging only 5 mm (0.2 in) over the course of 0 days, and the humidity is relatively high at 91%, contributing to a comfortable atmosphere. In contrast, May brings warmer conditions, with minimum temperatures rising to 11°C (52°F) and an average of 23°C (74°F), peaking at a hot 36°C (96°F). This month experiences significantly more precipitation than December, with 34 mm (1.3 in) spread over 8 days, while the humidity decreases slightly to 82%. For a closer look at the charming weather in May, check out Santa Barbara weather in May.

In December, the weather is generally mild with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 29°C (85°F), averaging around 15°C (60°F). The month is characterized by little to no precipitation, with just 5 mm over 0 days and high humidity at 91%. In contrast, June sees warmer temperatures with a minimum of 11°C (53°F) and a maximum reaching 34°C (94°F), averaging 21°C (71°F). However, June experiences significantly higher precipitation, totaling 102 mm (4.0 in) over 16 days and a lower humidity of 79%. This stark difference highlights the transition from the dry, cooler December to the wetter, warmer June. For more specifics on conditions, you can check Santa Barbara weather in June.

In December, the weather is generally cooler, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 29°C (85°F) and an average of 15°C (60°F). The month is characterized by very low precipitation, with only 5 mm (0.2 in) recorded, combined with high humidity at 91%. In contrast, July experiences warmer temperatures, with a minimum of 14°C (57°F) and a maximum of 32°C (90°F), averaging around 21°C (70°F). However, it is also significantly wetter, with 75 mm (3.0 in) of precipitation over 15 days, and the humidity is relatively lower at 72%. For a more detailed look at July weather, you can explore Santa Barbara weather in July.

December and August present a striking contrast in weather patterns. In December, temperatures range from a minimum of 0°C (33°F) to a maximum of 29°C (85°F), with an average of 15°C (60°F), and the month is remarkably dry, receiving only 5 mm (0.2 in) of precipitation over zero days, coupled with high humidity at 91%. In contrast, August boasts milder nighttime temperatures, with a minimum of 13°C (56°F) and a daily average of 21°C (70°F), peaking at 32°C (90°F). This month experiences substantial rainfall, accumulating 76 mm (3.0 in) over 14 days, while humidity is lower at 74%. For more detailed information, check out Santa Barbara weather in August.

In December, the weather is milder with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 29°C (85°F) and an average of 15°C (60°F). The month is relatively dry, experiencing only 5 mm (0.2 in) of precipitation over no rainy days and maintaining high humidity at 91%. In contrast, September offers a warmer climate with temperatures between 9°C (49°F) and 32°C (89°F), averaging 20°C (68°F). This month sees significant rainfall, accumulating to 109 mm (4.3 in) and spanning 18 days of rain, while humidity is slightly lower at 84%. For more detailed insights, check out Santa Barbara weather in September.

When comparing the weather in December and October, December tends to be milder, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 29°C (85°F), resulting in an average temperature of 15°C (60°F). In contrast, October experiences slightly warmer conditions, with an average temperature of 19°C (66°F) and daily highs peaking at 30°C (87°F). However, October also sees significantly more rainfall, with approximately 62 mm (2.4 in) of precipitation over 12 days, while December boasts much drier conditions with only 5 mm (0.2 in) and no rainy days at all. Both months maintain high humidity levels, around 91% for December and 92% for October. For more detailed information, check Santa Barbara weather in October.

In comparing the weather of December to November, we see some notable differences. December features a slightly wider temperature range, with minimum temperatures remaining at 0°C (33°F) and a maximum of 29°C (85°F), resulting in an average temperature of 15°C (60°F). In contrast, November enjoys a slightly warmer average temperature of 17°C (62°F) with a maximum of 30°C (87°F). Additionally, December experiences notably lower precipitation, with just 5 mm (0.2 in) over 0 days, while November has 19 mm (0.8 in) spread across 3 days. Humidity levels remain consistent at 91% for both months, suggesting a similar feel in terms of moisture in the air. For more specifics on November weather, 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

In December, Santa Barbara experiences a uniquely mild climate, departing from the warmer summer months. With average temperatures hovering around 15°C (60°F), December stands out with its refreshing coolness, especially at night when temperatures can dip to 0°C (33°F). Unlike the wetter months, there is virtually no rainfall, making it a dry period marked by a pleasantly low humidity of 91%. This ideal weather invites both locals and visitors to enjoy the beautiful outdoor scenery without the discomfort of heat, offering a perfect escape during the winter season. For more insights on how the climate varies throughout the year, visit Santa Barbara Climate.