Last updated: August 23, 2025
In December, the average temperature in Olby, France hovers around 4°C (39°F). Expect chilly lows, with temperatures plummeting to -6°C (21°F), while highs can reach up to 15°C (58°F). Be prepared for the wet weather, as 119 mm (4.7 in) of precipitation can fall over 18 days. With an average humidity of 92%, don’t forget your umbrella and a warm coat!
In December in Olby, the average temperature is 4°C (39°F). The maximum can reach 15°C (58°F), while the minimum can drop as low as -6°C (21°F). Be sure to pack warm clothing and prepare for chilly weather if you plan to visit during this month.
In Olby in December, the precipitation amount is 119 mm (4.7 in) over the course of 18 days.
In Olby in December humidity is 92%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel feel burdensome as you navigate through the thick, muggy air.
In Olby 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 Olby, you can visit Hourly UV Index in Olby.
UV Risk Categories
Weather in Olby varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Olby, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 80 mm (3.1 inches) | 91% | low |
| February Weather | 4°C (40°F) | 67 mm (2.6 inches) | 88% | moderate |
| March Weather | 6°C (43°F) | 85 mm (3.3 inches) | 84% | high |
| April Weather | 9°C (48°F) | 63 mm (2.5 inches) | 81% | high |
| May Weather | 12°C (54°F) | 115 mm (4.5 inches) | 77% | very high |
| June Weather | 16°C (62°F) | 113 mm (4.5 inches) | 76% | very high |
| July Weather | 18°C (65°F) | 75 mm (3.0 inches) | 68% | very high |
| August Weather | 18°C (65°F) | 59 mm (2.3 inches) | 61% | very high |
| September Weather | 15°C (58°F) | 68 mm (2.7 inches) | 72% | high |
| October Weather | 10°C (51°F) | 73 mm (2.9 inches) | 88% | moderate |
| November Weather | 5°C (42°F) | 83 mm (3.3 inches) | 91% | moderate |
| December Weather | 4°C (39°F) | 119 mm (4.7 inches) | 92% | low |