Last updated: August 27, 2025
In December, the average temperature in San Agustin, Mexico is a comfortable 17°C (63°F). Expect lows of 5°C (41°F) and highs reaching 29°C (85°F). The month brings a slight chance of rain, with an average precipitation of 5 mm (0.2 in) over just 1 day. Additionally, you can expect a moderate average humidity of 74%, contributing to the overall climate of the region.
In December in San Agustin, the average temperature is 17°C (63°F). Maximums can reach 29°C (85°F), while minimums can drop as low as 5°C (41°F). This varied climate makes San Agustin an ideal destination for travelers looking to experience a mix of warm days and cool evenings.
In San Agustin in December, the precipitation amount is 5 mm (0.2 in) over a duration of 1 day.
In San Agustin 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 San Agustin 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 Agustin.
UV Risk Categories
Weather in San Agustin varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Agustin, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 17°C (63°F) | 8 mm (0.3 inches) | 64% | very high |
| February Weather | 19°C (66°F) | 12 mm (0.5 inches) | 57% | extreme |
| March Weather | 22°C (71°F) | 5 mm (0.2 inches) | 46% | extreme |
| April Weather | 23°C (74°F) | 1 mm (0.0 inches) | 42% | extreme |
| May Weather | 24°C (76°F) | 25 mm (1.0 inches) | 51% | extreme |
| June Weather | 23°C (74°F) | 102 mm (4.0 inches) | 74% | extreme |
| July Weather | 22°C (71°F) | 111 mm (4.4 inches) | 79% | extreme |
| August Weather | 22°C (72°F) | 124 mm (4.9 inches) | 81% | extreme |
| September Weather | 21°C (71°F) | 132 mm (5.2 inches) | 84% | extreme |
| October Weather | 21°C (70°F) | 52 mm (2.1 inches) | 75% | extreme |
| November Weather | 19°C (67°F) | 22 mm (0.9 inches) | 71% | very high |
| December Weather | 17°C (63°F) | 5 mm (0.2 inches) | 74% | very high |