Last updated: March 2, 2024
The weather in San Juan Jaltepec, Mexico, during December is characterized by an average temperature of 19°C (66°F). Highs can soar to 30°C (87°F), while lows may dip to 10°C (50°F). Typically, the humidity level in San Juan Jaltepec throughout December hovers around 88%.
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Average temperature
Maximum temperature
Humidity
In December, San Juan Jaltepec averages 90 mm (3.6 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 11 hours 5 minutes of daylight, with the sun shining for approximately 8 hours 49 minutes each day. Additionally, there is a 61% probability of sunny days during this period.
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In December, the UV Index in San Juan Jaltepec reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 3 | 5 | 7 | 8 | 8 | 6 | 4 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||