Last updated: March 2, 2024
The weather in Costa Rica, Brazil, during December is characterized by an average temperature of 26°C (78°F). Highs can soar to 36°C (96°F), while lows may dip to 16°C (61°F). Typically, the humidity level in Costa Rica throughout December hovers around 84%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Costa Rica averages 216 mm (8.5 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 13 hours 32 minutes of daylight, with the sun shining for approximately 10 hours 29 minutes each day. Additionally, there is a 69% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In December, the UV Index in Costa Rica reaches a maximum of 15, 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 | 3 | 6 | 10 | 13 | 15 | 15 | 13 | 10 | 6 | 3 | 1 | 1 | 0 |
| Exposure | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | |||||
| Time to burn | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | |||||