Last updated: August 27, 2025
In San German, Mexico, the average temperature in December hovers around 18°C (65°F). During this time, temperatures can vary significantly, with a minimum of 2°C (35°F) and a maximum of 33°C (92°F). Expect 18 mm (0.7 in) of precipitation spread over 2 days, contributing to an average humidity of 86%, making the air feel pleasantly fresh and vibrant.
In December in San German, the average temperature is 18°C (65°F). The maximum can reach 33°C (92°F), while the minimum can drop as low as 2°C (35°F). This diverse climate makes San German a great destination for travelers seeking both warmth and cool, refreshing conditions.
In San German in December, the precipitation amount is 18 mm (0.7 in) over the course of 2 days.
In San German in December humidity is 86%. With an average temperature of 18°C (65°F), this humidity feels like you’re wrapped in a warm, heavy blanket, making outdoor activities feel quite muggy and sticky for traveling.
In San German 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 German, you can refer to this Hourly UV Index in San German.
UV Risk Categories
Weather in San German varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San German, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 17°C (63°F) | 23 mm (0.9 inches) | 84% | high |
| February Weather | 19°C (66°F) | 19 mm (0.7 inches) | 83% | very high |
| March Weather | 22°C (72°F) | 35 mm (1.4 inches) | 78% | very high |
| April Weather | 25°C (77°F) | 24 mm (0.9 inches) | 81% | extreme |
| May Weather | 28°C (82°F) | 65 mm (2.6 inches) | 82% | extreme |
| June Weather | 29°C (85°F) | 74 mm (2.9 inches) | 74% | extreme |
| July Weather | 30°C (86°F) | 84 mm (3.3 inches) | 68% | extreme |
| August Weather | 30°C (87°F) | 25 mm (1.0 inches) | 67% | extreme |
| September Weather | 28°C (83°F) | 95 mm (3.8 inches) | 75% | extreme |
| October Weather | 25°C (77°F) | 60 mm (2.4 inches) | 78% | very high |
| November Weather | 21°C (70°F) | 27 mm (1.1 inches) | 83% | very high |
| December Weather | 18°C (65°F) | 18 mm (0.7 inches) | 86% | high |