Last updated: August 27, 2025
In December, the average temperature in San Juan Bautista, Mexico hovers around 17°C (63°F). Expect a range from a cool 5°C (41°F) to a warm 28°C (83°F). Rainfall can be expected with an average precipitation of 63 mm (2.5 in) spread over 13 days, contributing to a relatively high average humidity of 86%.
In December in San Juan Bautista, the average temperature is 17°C (63°F), with maximums reaching 28°C (83°F) and minimums dropping as low as 5°C (41°F). This mild weather makes it an ideal time for outdoor activities and exploration.
In San Juan Bautista in December, the precipitation amount is 63 mm (2.5 in) spread over 13 days.
In San Juan Bautista in December humidity is 86%. With an average temperature of 17°C (63°F), this humidity feels like a heavy blanket wrapping around you, making the air feel thick and slightly stifling for traveling, as every step requires more effort and even a gentle breeze feels refreshing amidst the muggy atmosphere.
In San Juan Bautista in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For 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 | 16°C (62°F) | 81 mm (3.2 inches) | 84% | very high |
| February Weather | 17°C (64°F) | 53 mm (2.1 inches) | 73% | extreme |
| March Weather | 18°C (65°F) | 46 mm (1.8 inches) | 59% | extreme |
| April Weather | 21°C (70°F) | 55 mm (2.2 inches) | 52% | extreme |
| May Weather | 22°C (72°F) | 132 mm (5.2 inches) | 53% | extreme |
| June Weather | 21°C (70°F) | 297 mm (11.7 inches) | 55% | extreme |
| July Weather | 20°C (69°F) | 104 mm (4.1 inches) | 61% | extreme |
| August Weather | 21°C (70°F) | 159 mm (6.2 inches) | 71% | extreme |
| September Weather | 21°C (70°F) | 197 mm (7.8 inches) | 77% | extreme |
| October Weather | 20°C (69°F) | 205 mm (8.1 inches) | 78% | extreme |
| November Weather | 18°C (65°F) | 113 mm (4.4 inches) | 82% | very high |
| December Weather | 17°C (63°F) | 63 mm (2.5 inches) | 86% | very high |