Last updated: March 2, 2024
The weather in San Juan de Dios, Costa Rica, during December is characterized by an average temperature of 18°C (64°F). Highs can soar to 23°C (74°F), while lows may dip to 13°C (56°F). Typically, the humidity level in San Juan de Dios throughout December hovers around 72%.
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Average temperature
Maximum temperature
Humidity
In December, San Juan de Dios averages 156 mm (6.1 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 11 hours 32 minutes of daylight, with the sun shining for approximately 9 hours 19 minutes each day. Additionally, there is a 43% probability of sunny days during this period.
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Chance of sun
In December, the UV Index in San Juan de Dios reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 | 4 | 6 | 9 | 11 | 11 | 9 | 6 | 3 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||