Last updated: March 2, 2024
The weather in Saint Lucie, United States, during December is characterized by an average temperature of 21°C (70°F). Highs can soar to 28°C (82°F), while lows may dip to 10°C (51°F). Typically, the humidity level in Saint Lucie throughout December hovers around 84%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Saint Lucie averages 54 mm (2.1 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 10 hours 25 minutes of daylight, with the sun shining for approximately 8 hours 42 minutes each day. Additionally, there is a 65% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Saint Lucie reaches a maximum of 5, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 30 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 | 1 | 2 | 3 | 5 | 5 | 5 | 4 | 2 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||