Last updated: March 2, 2024
The weather in Costa Rica, Peru, during December is characterized by an average temperature of 25°C (78°F). Highs can soar to 33°C (91°F), while lows may dip to 20°C (68°F). Typically, the humidity level in Costa Rica throughout December hovers around 89%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Costa Rica averages 220 mm (8.7 inches) of rainfall, typically over the course of 26 rainy days. The month enjoys an average of 12 hours 31 minutes of daylight, with the sun shining for approximately 9 hours 24 minutes each day. Additionally, there is a 20% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Costa Rica reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 3 | 7 | 10 | 13 | 14 | 13 | 10 | 6 | 3 | 1 | 1 | 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 | ||||