From October 15 to April 15, winter tires that have been approved (marked M+S, MS, or 3PMSF) or to carry snow chains compatible with the tires on the vehicle and ready for use.
The road rises to over 1,270 meters above sea level at Étroubles, 1,632 meters at Saint-Rhémy-en-Bosses, and 1,875 meters at the tunnel entrance: nighttime frosts and sudden snowfalls occur regularly in late fall and early spring. The Traffic Police and the Carabinieri conduct systematic checks along the route. Driving without the required equipment results in administrative fines and a ban on continuing the journey until the vehicle is brought into compliance.
To check road conditions in real time before reaching the Crévacol or Flassin resorts, check the webcams and the “Winter on the Snow” section.
