Last updated: August 27, 2025
In December, the average temperature in San Cayetano de Vacas, Mexico is a comfortable 13°C (55°F). However, be prepared for a variety of weather, as temperatures can dip to a chilly -5°C (23°F) or rise to a warm 28°C (83°F). With an average precipitation of 18 mm (0.7 in) spread over just 2 days, you might want to pack an umbrella. Add to that an average humidity of 87%, and you’ll want to stay refreshed and hydrated during your stay!
In December in San Cayetano de Vacas, the average temperature is 13°C (55°F). Maximum temperatures can reach 28°C (83°F), while minimums can drop as low as -5°C (23°F). This makes San Cayetano de Vacas a destination that offers a diverse range of weather conditions, perfect for travelers seeking both warmth and a touch of winter chill.
In San Cayetano de Vacas in December, the precipitation amount is 18 mm (0.7 in) over the course of 2 days.
In San Cayetano de Vacas in December, humidity is 87%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel sluggish and slightly uncomfortable, as each step seems to cling to the damp air.
In San Cayetano de Vacas in December, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in San Cayetano de Vacas.
UV Risk Categories
Weather in San Cayetano de Vacas varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Cayetano de Vacas, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (54°F) | 16 mm (0.6 inches) | 75% | very high |
| February Weather | 15°C (59°F) | 12 mm (0.5 inches) | 69% | very high |
| March Weather | 18°C (65°F) | 19 mm (0.8 inches) | 65% | extreme |
| April Weather | 20°C (69°F) | 29 mm (1.1 inches) | 64% | extreme |
| May Weather | 22°C (72°F) | 43 mm (1.7 inches) | 75% | extreme |
| June Weather | 22°C (72°F) | 36 mm (1.4 inches) | 78% | extreme |
| July Weather | 21°C (71°F) | 65 mm (2.6 inches) | 67% | extreme |
| August Weather | 21°C (71°F) | 25 mm (1.0 inches) | 64% | extreme |
| September Weather | 20°C (68°F) | 60 mm (2.4 inches) | 81% | extreme |
| October Weather | 19°C (66°F) | 33 mm (1.3 inches) | 85% | extreme |
| November Weather | 15°C (60°F) | 16 mm (0.6 inches) | 87% | very high |
| December Weather | 13°C (55°F) | 18 mm (0.7 inches) | 87% | high |