Last updated: March 2, 2024
The weather in Gros Islet, Saint Lucia, during December is characterized by an average temperature of 26°C (80°F). Highs can soar to 29°C (85°F), while lows may dip to 23°C (74°F). Typically, the humidity level in Gros Islet throughout December hovers around 82%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Gros Islet averages 46 mm (1.8 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 11 hours 18 minutes of daylight, with the sun shining for approximately 10 hours 38 minutes each day. Additionally, there is a 54% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Gros Islet reaches a maximum of 9, 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 | 2 | 4 | 7 | 9 | 9 | 8 | 6 | 4 | 2 | 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 | ||||||