Last updated: August 23, 2025
In Lanslebourg-Mont-Cenis, France, the average temperature in December hovers around -7°C (19°F). Expect chilly extremes, with minimums dropping to -20°C (-5°F) and maximums reaching up to 3°C (38°F). The region experiences significant precipitation, totaling 140 mm (5.5 in) over approximately 15 days, contributing to a high average humidity of 90%. Prepare for a frosty and damp atmosphere!
In December in Lanslebourg-Mont-Cenis, the average temperature is -7°C (19°F). Maximum temperatures can reach 3°C (38°F), while minimums can drop as low as -20°C (-5°F). Travelers should prepare for cold conditions and dress in layers to stay warm during their visit.
In Lanslebourg-Mont-Cenis in December, the total precipitation amount is 140 mm (5.5 in) over a span of 15 days.
In Lanslebourg-Mont-Cenis in December humidity is 90%. With an average temperature of -7°C (19°F), this humidity feels like a biting chill that penetrates your clothes, making every step outside feel daunting and your breath visible in the frosty air, creating a harsh environment for traveling.
In Lanslebourg-Mont-Cenis 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 Lanslebourg-Mont-Cenis, you can visit Hourly UV Index in Lanslebourg-Mont-Cenis.
UV Risk Categories
Weather in Lanslebourg-Mont-Cenis varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Lanslebourg-Mont-Cenis, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (17°F) | 101 mm (4.0 inches) | 91% | moderate |
| February Weather | -5°C (23°F) | 66 mm (2.6 inches) | 87% | moderate |
| March Weather | -4°C (26°F) | 103 mm (4.1 inches) | 84% | very high |
| April Weather | 0°C (32°F) | 113 mm (4.4 inches) | 83% | very high |
| May Weather | 4°C (40°F) | 168 mm (6.6 inches) | 78% | very high |
| June Weather | 10°C (50°F) | 159 mm (6.3 inches) | 75% | extreme |
| July Weather | 12°C (54°F) | 135 mm (5.3 inches) | 72% | extreme |
| August Weather | 12°C (54°F) | 137 mm (5.4 inches) | 63% | very high |
| September Weather | 8°C (47°F) | 78 mm (3.1 inches) | 73% | very high |
| October Weather | 4°C (39°F) | 133 mm (5.2 inches) | 89% | high |
| November Weather | -3°C (27°F) | 147 mm (5.8 inches) | 90% | moderate |
| December Weather | -7°C (19°F) | 140 mm (5.5 inches) | 90% | low |