Last updated: August 27, 2025
In December, the average temperature in San Juan Bautista, Mexico hovers around 19°C (66°F), offering a pleasant climate. Expect temperatures to range from a cool 7°C (45°F) to a warm 31°C (88°F). During this month, you might experience 23 mm (0.9 in) of precipitation spread over approximately 3 days, contributing to an average humidity of 78%.
In December in San Juan Bautista, the average temperature is 19°C (66°F). The maximum can reach 31°C (88°F) and the minimum can be as low as 7°C (45°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while experiencing comfortable weather conditions.
In San Juan Bautista in December, the precipitation amount is 23 mm (0.9 in) over the course of 3 days.
In San Juan Bautista in December, humidity is 78%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making traveling quite uncomfortable unless you're well-prepared with lightweight, breathable clothing and frequent breaks to stay hydrated.
In San Juan Bautista 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 San Juan Bautista.
UV Risk Categories
Weather in San Juan Bautista varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Juan Bautista, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 18°C (65°F) | 36 mm (1.4 inches) | 74% | very high |
| February Weather | 19°C (67°F) | 37 mm (1.5 inches) | 66% | very high |
| March Weather | 21°C (70°F) | 4 mm (0.2 inches) | 61% | extreme |
| April Weather | 22°C (72°F) | 2 mm (0.1 inches) | 56% | extreme |
| May Weather | 24°C (75°F) | 13 mm (0.5 inches) | 61% | extreme |
| June Weather | 25°C (77°F) | 145 mm (5.7 inches) | 73% | extreme |
| July Weather | 24°C (76°F) | 323 mm (12.7 inches) | 82% | extreme |
| August Weather | 25°C (76°F) | 339 mm (13.3 inches) | 83% | extreme |
| September Weather | 24°C (76°F) | 306 mm (12.0 inches) | 83% | extreme |
| October Weather | 24°C (75°F) | 157 mm (6.2 inches) | 78% | extreme |
| November Weather | 21°C (71°F) | 28 mm (1.1 inches) | 77% | very high |
| December Weather | 19°C (66°F) | 23 mm (0.9 inches) | 78% | high |