Last updated: August 27, 2025
In December, the average temperature in Riells i Viabrea, Spain hovers around 7°C (45°F). Expect a chilly minimum of -3°C (27°F) and a pleasant maximum of 18°C (65°F). With an average humidity of 79% and 37 mm (1.5 in) of precipitation spread across 5 days, be prepared for some drizzly moments amidst the cool weather!
In December in Riells i Viabrea, the average temperature is 7°C (45°F). The maximum can reach 18°C (65°F), while the minimum can drop as low as -3°C (27°F). Travelers should be prepared for a mix of mild and chilly weather during this time.
In Riells i Viabrea in December, the precipitation amount is 37 mm (1.5 in) spread over a period of 5 days.
In Riells i Viabrea in December humidity is 79%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill wrapping around you, making outdoor explorations uncomfortable and requiring extra layers for warmth while you navigate through the misty air.
In Riells i Viabrea in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Riells i Viabrea, you can visit Hourly UV Index in Riells i Viabrea.
UV Risk Categories
Weather in Riells i Viabrea varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Riells i Viabrea, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (42°F) | 75 mm (2.9 inches) | 79% | moderate |
| February Weather | 8°C (47°F) | 65 mm (2.6 inches) | 74% | moderate |
| March Weather | 10°C (50°F) | 75 mm (3.0 inches) | 71% | moderate |
| April Weather | 12°C (54°F) | 98 mm (3.9 inches) | 69% | high |
| May Weather | 16°C (61°F) | 107 mm (4.2 inches) | 66% | very high |
| June Weather | 20°C (69°F) | 84 mm (3.3 inches) | 65% | very high |
| July Weather | 23°C (73°F) | 95 mm (3.7 inches) | 64% | very high |
| August Weather | 23°C (74°F) | 93 mm (3.7 inches) | 64% | very high |
| September Weather | 19°C (67°F) | 132 mm (5.2 inches) | 68% | high |
| October Weather | 15°C (60°F) | 151 mm (5.9 inches) | 77% | high |
| November Weather | 10°C (50°F) | 81 mm (3.2 inches) | 79% | moderate |
| December Weather | 7°C (45°F) | 37 mm (1.5 inches) | 79% | low |