Opening of the Mont Cenis and Iseran passes
Col du Mont Cenis
Road opening since May 16, 2025
The access road to the Mont Cenis pass (2081 m altitude), and to Italy, has been open since 16:00 on May 16, 2025.
Scheduled road closure*: 2nd Monday in November
In winter, the road is no longer accessible and largely becomes a ski slope: L'Escargot, Europe's longest green run (11km). The road is scheduled to close for the winter season on the 2nd Monday in November, this year on Monday November 10, 2025*.
*⚠ The opening or closing of the road may be brought forward or delayed by a few days depending on weather conditions.
Find all the official information on Savoie's roads (opening of passes, roadworks...) on :
savoie-route.fr
Iseran pass
Road opening since June 6, 2025
Europe's highest road pass (2,764m), clearing snow from the Iseran is a major undertaking, requiring several weeks of work on both sides of the pass. Snow heights often reach 8 to 10m in some areas (notably at the "pont de la neige" on the Bonneval sur Arc side). This year, the road opened to traffic on June 6, 2025.
Walls of snow are usually present on the side of the road until early July. Guaranteed selfie effect, but... be careful, there's regular traffic between cars, motorcycles and bikes on this mythical pass of the Route des Grandes Alpes.
Scheduled road closure*: 2nd Monday in November
The pass is usually closed for the entire winter season from the 2nd Monday in November*, i.e. this year on Monday November 10, 2025.
*⚠ These dates may vary according to the weather.