Last updated: August 26, 2025
In December, the average temperature in San Bartolome Tepetates, Mexico is a cool 11°C (53°F). Expect temperatures to range from a chilly -4°C (26°F) to a pleasantly warm 24°C (75°F). With an average humidity of 88%, the air might feel a bit heavy. You'll also want to prepare for light rain, as 7 mm (0.3 in) of precipitation is expected over the course of 1 day.
In December in San Bartolome Tepetates, the average temperature is 11°C (53°F), with maximums reaching 24°C (75°F) and minimums dipping as low as -4°C (26°F). This makes it essential for travelers to pack layers to stay comfortable in varying conditions.
In San Bartolome Tepetates in December, the precipitation amount is 7 mm (0.3 in) over the course of 1 day.
In San Bartolome Tepetates in December humidity is 88%. With an average temperature of 11°C (53°F), this humidity feels like a heavy blanket wrapping around you, making travel feel sluggish and uncomfortable as you navigate the damp air.
In San Bartolome Tepetates 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 Bartolome Tepetates.
UV Risk Categories
Weather in San Bartolome Tepetates varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Bartolome Tepetates, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (52°F) | 12 mm (0.5 inches) | 84% | very high |
| February Weather | 13°C (55°F) | 9 mm (0.4 inches) | 78% | extreme |
| March Weather | 14°C (58°F) | 24 mm (0.9 inches) | 75% | extreme |
| April Weather | 16°C (61°F) | 43 mm (1.7 inches) | 70% | extreme |
| May Weather | 16°C (62°F) | 60 mm (2.4 inches) | 77% | extreme |
| June Weather | 16°C (61°F) | 155 mm (6.1 inches) | 76% | extreme |
| July Weather | 15°C (59°F) | 120 mm (4.7 inches) | 68% | extreme |
| August Weather | 15°C (59°F) | 155 mm (6.1 inches) | 70% | extreme |
| September Weather | 15°C (59°F) | 160 mm (6.3 inches) | 82% | extreme |
| October Weather | 14°C (57°F) | 84 mm (3.3 inches) | 91% | extreme |
| November Weather | 12°C (54°F) | 25 mm (1.0 inches) | 89% | very high |
| December Weather | 11°C (53°F) | 7 mm (0.3 inches) | 88% | very high |