Last updated: August 23, 2025
In December, the average temperature in Courtois-sur-Yonne, France hovers around 6°C (43°F), offering a mild chill that is characteristic of the season. Be prepared for temperature fluctuations, with a minimum of -4°C (25°F) and a maximum reaching 16°C (61°F). Precipitation is quite notable, with 114 mm (4.5 in) expected over 17 days. Additionally, the air is filled with a high level of humidity at 93%, making the atmospheric experience feel even cooler.
In December in Courtois-sur-Yonne, the average temperature is 6°C (43°F), with maximums reaching 16°C (61°F) and minimums dropping as low as -4°C (25°F). This varied climate makes Courtois-sur-Yonne an ideal destination for travelers seeking both cool and mild weather experiences.
In Courtois-sur-Yonne in December, the precipitation amount is 114 mm (4.5 in) recorded over 17 days.
In Courtois-sur-Yonne in December, humidity is 93%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making travel particularly uncomfortable and the air feel heavy, as though every step is met with resistance.
In Courtois-sur-Yonne in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Courtois-sur-Yonne.
UV Risk Categories
Weather in Courtois-sur-Yonne varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Courtois-sur-Yonne, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 76 mm (3.0 inches) | 91% | low |
| February Weather | 6°C (43°F) | 69 mm (2.7 inches) | 89% | moderate |
| March Weather | 8°C (47°F) | 77 mm (3.1 inches) | 86% | moderate |
| April Weather | 11°C (52°F) | 33 mm (1.3 inches) | 84% | high |
| May Weather | 15°C (58°F) | 81 mm (3.2 inches) | 82% | very high |
| June Weather | 19°C (67°F) | 71 mm (2.8 inches) | 82% | very high |
| July Weather | 21°C (70°F) | 56 mm (2.2 inches) | 80% | very high |
| August Weather | 20°C (69°F) | 51 mm (2.0 inches) | 76% | very high |
| September Weather | 17°C (63°F) | 55 mm (2.2 inches) | 81% | high |
| October Weather | 13°C (55°F) | 84 mm (3.3 inches) | 88% | moderate |
| November Weather | 7°C (46°F) | 66 mm (2.6 inches) | 92% | low |
| December Weather | 6°C (43°F) | 114 mm (4.5 inches) | 93% | low |