Last updated: August 27, 2025
In December, the average temperature in San Jeronimo, Mexico hovers around 16°C (60°F). Expect a comfortable range with minimums dipping to 2°C (35°F) and maximums soaring to 29°C (84°F). Rainfall is light, with only 3 mm (0.1 in) expected over the course of just 1 day. Additionally, the air carries a touch of moisture, with an average humidity of 81%.
In December, in San Jeronimo, the average temperature is 16°C (60°F). Maximum temperatures can reach 29°C (84°F), while minimums can drop as low as 2°C (35°F). This pleasant and varied climate makes San Jeronimo an ideal destination for travelers seeking a mix of warm and cool experiences.
In San Jeronimo in December, the precipitation amount is 3 mm (0.1 in) over the course of 1 day.
In San Jeronimo in December, humidity is 81%. With an average temperature of 16°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you as you travel, making you acutely aware of the sweat on your skin and creating an atmosphere that might dampen your spirits but also invites you to seek out refreshing beverages and shady spots.
In San Jeronimo in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in San Jeronimo.
UV Risk Categories
Weather in San Jeronimo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Jeronimo, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 16°C (61°F) | 6 mm (0.2 inches) | 74% | very high |
| February Weather | 18°C (64°F) | 6 mm (0.3 inches) | 65% | extreme |
| March Weather | 21°C (69°F) | 5 mm (0.2 inches) | 58% | extreme |
| April Weather | 22°C (72°F) | 2 mm (0.1 inches) | 58% | extreme |
| May Weather | 23°C (75°F) | 41 mm (1.6 inches) | 67% | extreme |
| June Weather | 22°C (72°F) | 142 mm (5.6 inches) | 76% | extreme |
| July Weather | 20°C (69°F) | 199 mm (7.8 inches) | 67% | extreme |
| August Weather | 20°C (69°F) | 182 mm (7.2 inches) | 68% | extreme |
| September Weather | 20°C (68°F) | 167 mm (6.6 inches) | 81% | extreme |
| October Weather | 20°C (67°F) | 67 mm (2.6 inches) | 83% | extreme |
| November Weather | 18°C (64°F) | 18 mm (0.7 inches) | 84% | very high |
| December Weather | 16°C (60°F) | 3 mm (0.1 inches) | 81% | very high |