Last updated: August 27, 2025
In San Matias Petacaltepec, Mexico, the average temperature in December is a comfortable 19°C (66°F). However, temperatures can vary, dipping as low as 8°C (46°F) and soaring to a warm 30°C (86°F). Expect light rainfall with an average precipitation of 10 mm (0.4 in) over just 2 days. With an average humidity level of 88%, the month blends warmth with a touch of tropical air.
In December in San Matias Petacaltepec, the average temperature is 19°C (66°F). The maximum can reach 30°C (86°F), while the minimum can drop as low as 8°C (46°F). This moderate climate makes San Matias Petacaltepec an ideal destination for travelers seeking pleasant temperatures and enjoyable outdoor activities.
In San Matias Petacaltepec in December, the precipitation amount is 10 mm (0.4 in) over a period of 2 days.
In San Matias Petacaltepec in December humidity is 88%. With an average temperature of 19°C (66°F), this humidity feels like you're stepping into a warm, enveloping blanket, making outdoor exploration a bit challenging as the air feels heavy and sticky, often sapping your energy and making you crave shade and cool refreshments.
In San Matias Petacaltepec 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 Matias Petacaltepec.
UV Risk Categories
Weather in San Matias Petacaltepec varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Matias Petacaltepec, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 19°C (66°F) | 14 mm (0.6 inches) | 84% | very high |
| February Weather | 20°C (68°F) | 14 mm (0.5 inches) | 80% | extreme |
| March Weather | 21°C (70°F) | 16 mm (0.6 inches) | 73% | extreme |
| April Weather | 22°C (72°F) | 75 mm (3.0 inches) | 67% | extreme |
| May Weather | 22°C (72°F) | 247 mm (9.7 inches) | 72% | extreme |
| June Weather | 21°C (70°F) | 497 mm (19.6 inches) | 73% | extreme |
| July Weather | 21°C (70°F) | 266 mm (10.5 inches) | 76% | extreme |
| August Weather | 21°C (70°F) | 397 mm (15.6 inches) | 80% | extreme |
| September Weather | 21°C (70°F) | 391 mm (15.4 inches) | 84% | extreme |
| October Weather | 21°C (69°F) | 189 mm (7.5 inches) | 89% | extreme |
| November Weather | 20°C (68°F) | 23 mm (0.9 inches) | 88% | very high |
| December Weather | 19°C (66°F) | 10 mm (0.4 inches) | 88% | very high |