Last updated: August 27, 2025
In December, the average temperature in Santa Teresa, Mexico is a pleasant 17°C (63°F), with minimums dipping to 4°C (40°F) and maximums reaching a warm 30°C (86°F). You'll experience a modest precipitation of 17 mm (0.7 in) over just 2 days, accompanied by an average humidity of 74%. Embrace the range of weather as you explore!
In December in Santa Teresa, the average temperature is 17°C (63°F). Maximums can reach 30°C (86°F) and minimums can be as low as 4°C (40°F). This makes it an ideal time for travelers to enjoy a range of outdoor activities while still being prepared for cooler evenings.
In Santa Teresa in December, the precipitation amount is 17 mm (0.7 in) over a span of 2 days.
In Santa Teresa in December, humidity is 74%. With an average temperature of 17°C (63°F), this humidity feels like a gentle embrace, making outdoor exploration comfortable yet slightly enveloped in warmth, perfect for leisurely strolls but requiring ample hydration for prolonged activities.
In Santa Teresa 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 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 | 17°C (63°F) | 14 mm (0.5 inches) | 64% | very high |
| February Weather | 18°C (65°F) | 19 mm (0.8 inches) | 57% | extreme |
| March Weather | 21°C (70°F) | 2 mm (0.1 inches) | 46% | extreme |
| April Weather | 22°C (72°F) | 1 mm (0.0 inches) | 42% | extreme |
| May Weather | 24°C (75°F) | 12 mm (0.5 inches) | 51% | extreme |
| June Weather | 24°C (76°F) | 78 mm (3.1 inches) | 74% | extreme |
| July Weather | 22°C (72°F) | 180 mm (7.1 inches) | 79% | extreme |
| August Weather | 22°C (72°F) | 165 mm (6.5 inches) | 81% | extreme |
| September Weather | 22°C (72°F) | 191 mm (7.5 inches) | 84% | extreme |
| October Weather | 22°C (71°F) | 74 mm (2.9 inches) | 75% | extreme |
| November Weather | 20°C (68°F) | 15 mm (0.6 inches) | 71% | very high |
| December Weather | 17°C (63°F) | 17 mm (0.7 inches) | 74% | very high |