Last updated: March 2, 2024
The weather in Rio Grande, United States, during December is characterized by an average temperature of 6°C (44°F). Highs can soar to 15°C (60°F), while lows may dip to -2°C (28°F). Typically, the humidity level in Rio Grande throughout December hovers around 84%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Rio Grande averages 118 mm (4.6 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 9 hours 28 minutes of daylight, with the sun shining for approximately 6 hours 4 minutes each day. Additionally, there is a 37% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Rio Grande reaches a maximum of 3, 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 | 0 | 1 | 1 | 2 | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 0 | 0 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||