Last updated: August 27, 2025
In December, the average temperature in San Ignacio, Mexico is a mild 13°C (56°F). Temperatures can range from a chilly -2°C (28°F) to a warm 27°C (81°F), providing a diverse climate. Expect minimal rainfall, with an average precipitation of just 6 mm (0.2 in) over 1 day. The air is quite humid, with an average humidity of 81%, ensuring a fresh feel throughout the month.
In December in San Ignacio, the average temperature is 13°C (56°F). The maximum can reach 27°C (81°F), while the minimum can drop as low as -2°C (28°F). Travelers should be prepared for a wide range of weather conditions, from warm days to chilly nights.
In San Ignacio in December, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.
In San Ignacio in December, humidity is 81%. With an average temperature of 13°C (56°F), this humidity feels like a blanket of damp air that clings to your skin, making it essential to pack breathable clothing and stay hydrated while exploring.
In San Ignacio 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 Ignacio.
UV Risk Categories
Weather in San Ignacio varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Ignacio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 13°C (56°F) | 5 mm (0.2 inches) | 74% | very high |
| February Weather | 16°C (60°F) | 7 mm (0.3 inches) | 65% | extreme |
| March Weather | 18°C (64°F) | 10 mm (0.4 inches) | 58% | extreme |
| April Weather | 20°C (69°F) | 11 mm (0.4 inches) | 58% | extreme |
| May Weather | 22°C (71°F) | 35 mm (1.4 inches) | 67% | extreme |
| June Weather | 20°C (68°F) | 139 mm (5.5 inches) | 76% | extreme |
| July Weather | 19°C (66°F) | 103 mm (4.1 inches) | 67% | extreme |
| August Weather | 19°C (67°F) | 89 mm (3.5 inches) | 68% | extreme |
| September Weather | 18°C (65°F) | 125 mm (4.9 inches) | 81% | extreme |
| October Weather | 17°C (63°F) | 61 mm (2.4 inches) | 83% | extreme |
| November Weather | 15°C (58°F) | 19 mm (0.7 inches) | 84% | very high |
| December Weather | 13°C (56°F) | 6 mm (0.2 inches) | 81% | very high |