Last updated: August 27, 2025
In December, the average temperature in Santa Barbara, Mexico hovers around 13°C (56°F). However, temperatures can vary significantly, with a minimum of -5°C (23°F) and a maximum reaching 30°C (86°F). While you're enjoying the mild weather, be prepared for a little rain, as precipitation totals about 13 mm (0.5 in) over 2 days. Don't forget to stay hydrated; the average humidity level is a notable 84%.
In December in Santa Barbara, the average temperature is 13°C (56°F). Maximum temperatures can reach up to 30°C (86°F), while minimums can drop as low as -5°C (23°F). Be prepared for a wide range of temperatures when traveling to Santa Barbara during this month!
In Santa Barbara in December, the precipitation amount is 13 mm (0.5 in) over a span of 2 days.
In Santa Barbara in December, humidity is 84%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel cooler and more uncomfortable for traveling, as the air clings to your skin and weighs you down with a sense of heaviness.
In Santa Barbara in December, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Santa Barbara.
UV Risk Categories
Weather in Santa Barbara varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Santa Barbara, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 13°C (56°F) | 5 mm (0.2 inches) | 70% | high |
| February Weather | 16°C (61°F) | 7 mm (0.3 inches) | 62% | very high |
| March Weather | 19°C (67°F) | 8 mm (0.3 inches) | 53% | extreme |
| April Weather | 22°C (72°F) | 3 mm (0.1 inches) | 48% | extreme |
| May Weather | 25°C (78°F) | 7 mm (0.3 inches) | 52% | extreme |
| June Weather | 26°C (80°F) | 31 mm (1.2 inches) | 64% | extreme |
| July Weather | 24°C (76°F) | 80 mm (3.2 inches) | 73% | extreme |
| August Weather | 24°C (76°F) | 62 mm (2.4 inches) | 71% | extreme |
| September Weather | 22°C (72°F) | 104 mm (4.1 inches) | 82% | extreme |
| October Weather | 20°C (69°F) | 44 mm (1.7 inches) | 83% | extreme |
| November Weather | 17°C (63°F) | 7 mm (0.3 inches) | 82% | very high |
| December Weather | 13°C (56°F) | 13 mm (0.5 inches) | 84% | high |