Last updated: August 27, 2025
In December, the average temperature in San Diego de Alejandria, Mexico hovers around 15°C (59°F). Expect a minimum of 1°C (34°F) and a pleasant maximum of 28°C (83°F). During this time, precipitation typically reaches 6 mm (0.2 in), usually falling over just 1 day. With an average humidity of 81%, the weather remains comfortably mild.
In December in San Diego de Alejandria, the average temperature is 15°C (59°F), with a maximum that can reach 28°C (83°F) and a minimum that can dip as low as 1°C (34°F). Be prepared for a wide range of temperatures when planning your travel to San Diego de Alejandria this December.
In San Diego de Alejandria in December, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.
In San Diego de Alejandria in December humidity is 81%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket draped over you, making traveling quite uncomfortable as you constantly wipe away beads of sweat and feel the stickiness clinging to your clothes.
In San Diego de Alejandria 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 Diego de Alejandria.
UV Risk Categories
Weather in San Diego de Alejandria varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Diego de Alejandria, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 15°C (60°F) | 8 mm (0.3 inches) | 74% | very high |
| February Weather | 17°C (64°F) | 10 mm (0.4 inches) | 65% | extreme |
| March Weather | 21°C (69°F) | 7 mm (0.3 inches) | 58% | extreme |
| April Weather | 22°C (73°F) | 3 mm (0.1 inches) | 58% | extreme |
| May Weather | 24°C (75°F) | 32 mm (1.2 inches) | 67% | extreme |
| June Weather | 22°C (72°F) | 155 mm (6.1 inches) | 76% | extreme |
| July Weather | 20°C (68°F) | 177 mm (7.0 inches) | 67% | extreme |
| August Weather | 20°C (69°F) | 144 mm (5.6 inches) | 68% | extreme |
| September Weather | 20°C (68°F) | 157 mm (6.2 inches) | 81% | extreme |
| October Weather | 19°C (67°F) | 52 mm (2.1 inches) | 83% | extreme |
| November Weather | 17°C (63°F) | 18 mm (0.7 inches) | 84% | very high |
| December Weather | 15°C (59°F) | 6 mm (0.2 inches) | 81% | very high |