Last updated: March 2, 2024
The weather in La Fortuna, Costa Rica, during December is characterized by an average temperature of 23°C (74°F). Highs can soar to 28°C (83°F), while lows may dip to 19°C (66°F). Typically, the humidity level in La Fortuna throughout December hovers around 70%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, La Fortuna averages 60 mm (2.3 inches) of rainfall, typically over the course of 20 rainy days. The month enjoys an average of 11 hours 29 minutes of daylight, with the sun shining for approximately 10 hours 5 minutes each day. Additionally, there is a 39% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in La Fortuna reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 | 3 | 6 | 8 | 10 | 10 | 9 | 6 | 3 | 1 | 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 | ||||||