Last updated: August 27, 2025
In December, the average temperature in Santa Teresa, Mexico hovers around 16°C (61°F), making it a pleasant time to visit. Expect a minimum of 1°C (35°F) and a maximum of 29°C (84°F), offering a diverse range of weather. During this month, precipitation is relatively light, averaging 25 mm (1.0 in) over just 2 days. The average humidity stands at a noteworthy 83%, adding to the unique atmosphere of the region.
In December in Santa Teresa, the average temperature is 16°C (61°F), with maximums reaching 29°C (84°F) and minimums dipping as low as 1°C (35°F). This variability makes it essential for travelers to pack layers to stay comfortable throughout the day.
In Santa Teresa in December, the precipitation amount is 25 mm (1.0 in) over the course of 2 days.
In Santa Teresa in December, humidity is 83%. With an average temperature of 16°C (61°F), this humidity feels like a warm, muggy blanket wrapping around you, making travel a bit sticky and potentially uncomfortable as you navigate through the sights.
In Santa Teresa 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 Teresa.
UV Risk Categories
Weather in Santa Teresa varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Santa Teresa, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 15°C (60°F) | 35 mm (1.4 inches) | 71% | very high |
| February Weather | 16°C (62°F) | 35 mm (1.4 inches) | 64% | extreme |
| March Weather | 19°C (66°F) | 4 mm (0.2 inches) | 49% | extreme |
| April Weather | 20°C (68°F) | 3 mm (0.1 inches) | 47% | extreme |
| May Weather | 22°C (72°F) | 17 mm (0.7 inches) | 55% | extreme |
| June Weather | 22°C (72°F) | 151 mm (5.9 inches) | 77% | extreme |
| July Weather | 21°C (70°F) | 351 mm (13.8 inches) | 82% | extreme |
| August Weather | 22°C (71°F) | 321 mm (12.7 inches) | 83% | extreme |
| September Weather | 21°C (70°F) | 276 mm (10.9 inches) | 86% | extreme |
| October Weather | 21°C (70°F) | 128 mm (5.0 inches) | 83% | extreme |
| November Weather | 18°C (65°F) | 28 mm (1.1 inches) | 80% | very high |
| December Weather | 16°C (61°F) | 25 mm (1.0 inches) | 83% | high |