Last updated: August 27, 2025
In San Antonio Chiltepec, Mexico, the average temperature in December hovers around 21°C (69°F). While the mercury can dip to a chilly 4°C (40°F), it can also soar to a warm 34°C (93°F). With an average humidity of 70%, you'll find the air relatively moist. And don't worry about the rain – only 1 mm (0.0 in) of precipitation is expected across 0 days this month!
In December in San Antonio Chiltepec, the average temperature is 21°C (69°F). Maximum temperatures can reach 34°C (93°F), while the minimum can dip as low as 4°C (40°F). This makes San Antonio Chiltepec an ideal destination for travelers seeking a mix of warm days and cooler nights.
In San Antonio Chiltepec in December, the precipitation amount is 1 mm (0.0 in) during a span of 0 days.
In San Antonio Chiltepec in December, humidity is 70%. With an average temperature of 21°C (69°F), this humidity feels like a warm blanket that envelops you as you travel, making you feel sticky and a bit lethargic, yet it adds a certain tropical charm to your adventures.
In San Antonio Chiltepec 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 Antonio Chiltepec.
UV Risk Categories
Weather in San Antonio Chiltepec varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Antonio Chiltepec, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 20°C (69°F) | 3 mm (0.1 inches) | 65% | very high |
| February Weather | 22°C (73°F) | 2 mm (0.1 inches) | 61% | extreme |
| March Weather | 24°C (76°F) | 5 mm (0.2 inches) | 59% | extreme |
| April Weather | 26°C (79°F) | 11 mm (0.4 inches) | 62% | extreme |
| May Weather | 26°C (80°F) | 61 mm (2.4 inches) | 73% | extreme |
| June Weather | 24°C (76°F) | 184 mm (7.2 inches) | 78% | extreme |
| July Weather | 24°C (75°F) | 137 mm (5.4 inches) | 79% | extreme |
| August Weather | 24°C (75°F) | 179 mm (7.1 inches) | 82% | extreme |
| September Weather | 23°C (74°F) | 246 mm (9.7 inches) | 82% | extreme |
| October Weather | 23°C (74°F) | 80 mm (3.2 inches) | 79% | extreme |
| November Weather | 22°C (72°F) | 14 mm (0.6 inches) | 72% | very high |
| December Weather | 21°C (69°F) | 1 mm (0.0 inches) | 70% | very high |