Last updated: August 27, 2025
In San Javier, Mexico, the average temperature in December hovers around 15°C (60°F), creating a mild atmosphere. However, be prepared for a range of temperatures, with a minimum of 0°C (33°F) and a maximum soaring to 29°C (85°F). Expect a light touch of rain, with only 5 mm (0.2 in) of precipitation over 0 days. Humidity levels are on the higher side, averaging 91%, giving you that refreshing, tropical feel!
In December in San Javier, the average temperature is 15°C (60°F), with maximums reaching up to 29°C (85°F) and minimums dropping as low as 0°C (33°F). This varied climate makes it essential for travelers to pack accordingly and be prepared for both warm and cool conditions.
In San Javier in December, the precipitation amount is 5 mm (0.2 in) during a span of 0 days.
In San Javier in December, humidity is 91%. With an average temperature of 15°C (60°F), this humidity feels like traveling through a warm, damp blanket, making every step heavier and the air thick, which can be quite uncomfortable for most travelers.
In San Javier 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 Javier.
UV Risk Categories
Weather in San Javier varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Javier, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 15°C (59°F) | 6 mm (0.2 inches) | 88% | very high |
| February Weather | 17°C (64°F) | 5 mm (0.2 inches) | 86% | extreme |
| March Weather | 20°C (67°F) | 13 mm (0.5 inches) | 83% | extreme |
| April Weather | 22°C (72°F) | 17 mm (0.7 inches) | 80% | extreme |
| May Weather | 23°C (74°F) | 34 mm (1.3 inches) | 82% | extreme |
| June Weather | 21°C (71°F) | 102 mm (4.0 inches) | 79% | extreme |
| July Weather | 21°C (70°F) | 75 mm (3.0 inches) | 72% | extreme |
| August Weather | 21°C (70°F) | 76 mm (3.0 inches) | 74% | extreme |
| September Weather | 20°C (68°F) | 109 mm (4.3 inches) | 84% | extreme |
| October Weather | 19°C (66°F) | 62 mm (2.4 inches) | 92% | extreme |
| November Weather | 17°C (62°F) | 19 mm (0.8 inches) | 91% | very high |
| December Weather | 15°C (60°F) | 5 mm (0.2 inches) | 91% | very high |