Last updated: August 23, 2025
In December, the average temperature in Modane, France hovers around -8°C (18°F), making it a chilly time of year. Temperatures can dip as low as -23°C (-9°F) and reach highs of 3°C (38°F). Expect precipitation to total 178 mm (7.0 in) over approximately 17 days, accompanied by an average humidity level of a frosty 90%.
In December in Modane, the average temperature is -8°C (18°F). Maximum temperatures can reach 3°C (38°F), while the minimum can drop as low as -23°C (-9°F). Be prepared for chilly weather and pack warm clothing if you plan to travel during this time.
In Modane in December, the total precipitation amount is 178 mm (7.0 in), occurring over a span of 17 days.
In Modane in December, humidity is 90%. With an average temperature of -8°C (18°F), this humidity feels like an icy fog wrapping around you, making every breath sharp and crisp, and requiring careful planning for travel to avoid the chill while navigating the damp air.
In Modane 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 Modane, you can visit Hourly UV Index in Modane.
UV Risk Categories
Weather in Modane varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Modane, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (15°F) | 112 mm (4.4 inches) | 91% | moderate |
| February Weather | -6°C (21°F) | 79 mm (3.1 inches) | 87% | moderate |
| March Weather | -4°C (24°F) | 114 mm (4.5 inches) | 84% | very high |
| April Weather | -1°C (31°F) | 79 mm (3.1 inches) | 83% | very high |
| May Weather | 3°C (38°F) | 141 mm (5.5 inches) | 78% | very high |
| June Weather | 9°C (49°F) | 91 mm (3.6 inches) | 75% | extreme |
| July Weather | 12°C (54°F) | 61 mm (2.4 inches) | 72% | extreme |
| August Weather | 12°C (53°F) | 67 mm (2.6 inches) | 63% | very high |
| September Weather | 8°C (46°F) | 48 mm (1.9 inches) | 73% | very high |
| October Weather | 3°C (38°F) | 101 mm (4.0 inches) | 89% | high |
| November Weather | -4°C (25°F) | 115 mm (4.5 inches) | 90% | moderate |
| December Weather | -8°C (18°F) | 178 mm (7.0 inches) | 90% | low |