The law requires winter tires from December 1 to March 15, but ideally you should install them as soon as the temperature drops below 7 °C.
What Quebec law says
In Quebec, the Highway Safety Code requires all passenger vehicles to be fitted with winter tires from December 1 to March 15 inclusive. Not following this rule can lead to a fine of $200 to $300.
The rule applies to all passenger vehicles registered in Quebec, including SUVs, pickup trucks and rentals.
Key dates for winter 2026-2027
Three dates frame the season in Quebec:
- ✓Studded tires: allowed from October 15, 2026 to May 1, 2027
- ✓Winter tires mandatory: December 1, 2026 to March 15, 2027 inclusive
- ✓Summer tires: allowed again from March 16, 2027
The 7 °C rule matters more than the date
Winter tires are made of a special rubber that stays flexible below 7 °C. Under that threshold, an all-season or summer tire hardens and loses up to 50% of its grip. Do not wait for the first snowfall: icy roads in the fall and morning frost are just as dangerous.
- ✓Install your winter tires once the temperature hovers around 7 °C for several days in a row (CAA-Québec's advice)
- ✓Depending on the region, that is often between late October and mid-November: a little earlier in colder regions, a little later in Montréal
- ✓Do not wait until November, to avoid the waiting lists at garages
Four-season tires: allowed only with the pictogram
During the mandatory period, a tire must bear the pictogram of a snowflake inside a mountain (or be studded). Four-season tires with this pictogram are therefore allowed; "all-season" tires marked only M+S are not. On ice and deep snow, a dedicated winter tire still has the edge.
Storage: how to keep your summer tires
To extend the life of your summer tires while they are stored for the winter:
- ✓Clean them before storage to remove salt and dirt
- ✓Store them in a cool, dark, dry place (ideally between 10 and 20 °C)
- ✓Stacked flat or standing upright on a shelf, never hung
- ✓Wrapped in opaque bags to protect them from ozone




