Last updated: August 27, 2025
In December, the average temperature in San Rafael, Mexico hovers around 20°C (68°F). Expect cool nights with a minimum of 6°C (44°F) and warm days peaking at 36°C (97°F). The region sees a modest precipitation of 12 mm (0.5 in) spread over just 2 days, while the air carries an average humidity level of 72%.
In December in San Rafael, the average temperature is 20°C (68°F). Maximums can reach 36°C (97°F), and minimums can be as low as 6°C (44°F). Be prepared for warm days and cool evenings when traveling to San Rafael during this month.
In San Rafael in December, the precipitation amount is 12 mm (0.5 in) over the course of 2 days.
In San Rafael in December humidity is 72%. With an average temperature of 20°C (68°F), this humidity feels like a heavy blanket enveloping you, making every step slightly more laborious and the air thick with moisture, which can be uncomfortable for traveling.
In San Rafael in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in San Rafael, you can refer to this Hourly UV Index in San Rafael.
UV Risk Categories
Weather in San Rafael varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Rafael, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 19°C (66°F) | 8 mm (0.3 inches) | 70% | high |
| February Weather | 20°C (67°F) | 18 mm (0.7 inches) | 67% | very high |
| March Weather | 21°C (71°F) | 4 mm (0.2 inches) | 62% | very high |
| April Weather | 23°C (74°F) | 1 mm (0.0 inches) | 58% | extreme |
| May Weather | 26°C (79°F) | 0 mm (0.0 inches) | 59% | extreme |
| June Weather | 29°C (85°F) | 19 mm (0.8 inches) | 64% | extreme |
| July Weather | 31°C (87°F) | 78 mm (3.1 inches) | 74% | extreme |
| August Weather | 31°C (87°F) | 121 mm (4.8 inches) | 78% | extreme |
| September Weather | 29°C (85°F) | 131 mm (5.1 inches) | 78% | extreme |
| October Weather | 29°C (84°F) | 26 mm (1.0 inches) | 75% | very high |
| November Weather | 25°C (76°F) | 32 mm (1.3 inches) | 74% | high |
| December Weather | 20°C (68°F) | 12 mm (0.5 inches) | 72% | high |