Col de l'Iseran: road opening and closing

The Col de l'Iseran road is open from June to November. Depending on the weather (snow), traffic may be interrupted, especially in autumn. The road is closed throughout the winter.

 

Col de l'Iseran road, road closed sign, Bonneval sur Arc, snow-covered road
Winter

Road closed

In winter, the Col de l'Iseran road is closed for safety reasons. It is therefore not possible to travel from Bonneval sur Arc to Val d'Isère by car at this time.

Following snowfalls at the end of October 2025, the pass was closed to traffic.

 

Col de l'Iseran, snow walls during the opening of the pass on the Bonneval sur Arc side, in June.
Summer

Road opening scheduled for early June 2026

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 between May and early June. Snow heights often reach 8 to 10m in some areas (notably at the "pont de la neige" on the Bonneval sur Arc side).

Scheduled opening of the access road to the Iseran pass at the beginning of June 2026.

Information pictogram

Road information in Savoie

All the official information in real time (opening and closing of passes, works, etc.):

savoie-route.fr