Last updated: March 2, 2024
The weather in San Antonio, Argentina, during December is characterized by an average temperature of 19°C (66°F). Highs can soar to 30°C (86°F), while lows may dip to 10°C (50°F). Typically, the humidity level in San Antonio throughout December hovers around 61%.
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Average temperature
Maximum temperature
Humidity
In December, San Antonio averages 230 mm (9.0 inches) of rainfall, typically over the course of 21 rainy days. The month enjoys an average of 13 hours 52 minutes of daylight, with the sun shining for approximately 11 hours 5 minutes each day. Additionally, there is a 39% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In December, the UV Index in San Antonio reaches a maximum of 15, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 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 | 2 | 4 | 8 | 11 | 14 | 15 | 15 | 12 | 9 | 5 | 2 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 30 min | 45 min | ||||||