Last updated: August 23, 2025
In September, the average temperature in Lanslebourg-Mont-Cenis, France hovers around 8°C (47°F). Expect a wide range, with minimums dipping to -6°C (21°F) and maximums peaking at 20°C (68°F). The area sees 78 mm (3.1 in) of precipitation spread over 17 days, contributing to an average humidity of 73%.
In September in Lanslebourg-Mont-Cenis, the average temperature is 8°C (47°F), with maximums reaching up to 20°C (68°F) and minimums dropping as low as -6°C (21°F). Travelers should be prepared for a range of temperatures, so it's best to pack accordingly for both chilly and milder weather.
In Lanslebourg-Mont-Cenis in September, the precipitation amount is 78 mm (3.1 in) over a span of 17 days.
In Lanslebourg-Mont-Cenis in September humidity is 73%. With an average temperature of 8°C (47°F), this humidity feels like a chilly dampness that can make outdoor activities less enjoyable, wrapping you in a thick, misty embrace that weighs heavily on your clothes and skin, making travel seem a bit more cumbersome and less invigorating.
In Lanslebourg-Mont-Cenis in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the 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 September’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 |