When should you swap winter tires in Ontario?
The short answer: put winter tires on once daytime temperatures stay below 7°C — in most of Ontario that's late October to mid-November — and switch back in April when they hold above 7°C. It's the temperature, not the first snowfall, that matters. And if you drive across to Gatineau or anywhere in Quebec, winter tires are the law from December 1 to March 15. Updated July 2026.
Swap Timing
When to swap, at a glance
Use the 7°C rule as your trigger, not the calendar. Here's the timing for Ontario — plus the legal window if you cross into Quebec.
| Milestone | When (Ontario) | What triggers it |
|---|---|---|
| Put winter tires on | Late October – mid-November |
|
| Take winter tires off | Early–mid April |
|
| Quebec / Gatineau legal window | December 1 – March 15 |
|
Timing is typical for southern and eastern Ontario — watch the forecast, not the date. Ottawa and the Ottawa Valley usually swap a week or two ahead of Toronto.
The 7°C Rule
Why temperature decides, not the calendar
The 7°C line
Below 7°C, the rubber in all-season and summer tires stiffens and loses grip. Winter-tire compound stays soft and keeps traction. That crossover — not the first snow — is the real signal to swap.
Ontario: your call, with a perk
Ontario doesn't require winter tires — but every insurer must offer a winter-tire discount (usually 2–5%) since 2016. Run a full set and ask your provider to apply it.
Quebec: it's the law
Drive in Gatineau or anywhere in Quebec and winter tires are mandatory December 1 to March 15, marked with the 3PMSF snowflake. Fines run $200–$300. Ottawa commuters, plan around it.
Beat the rush
Every shop is booked solid the week of the first cold snap. Swap early, and line up storage for your off-season set before the scramble — not during it.
The Other Half of the Swap
Swapping is only half the job — where do the off-season tires go?
Every swap leaves you holding a full set of tires you won't touch for six months. Four tires take over a corner of the garage, a locker, or a balcony — and a hot summer is hard on winter rubber sitting in a shed. That's the part nobody plans for until swap day.
That's where we come in. Tire Reserve picks up your off-season set, stores it climate-controlled at 15–20°C — barcoded, photographed, and insured — and delivers it back for your next swap. You never haul tires or give up the space. It's $200 per set per season all-in, $150 for each additional set, $175 with a valid student ID, across Toronto, Ottawa, and Gatineau. See how it works or view pricing. (Got a garage and don't mind the lifting? Storing at home is genuinely free — we're for everyone who'd rather not.)
Winter Tire FAQ
When to swap winter tires: common questions
When should I put winter tires on in Ontario?
When daytime temperatures consistently drop below 7°C — usually late October to mid-November in southern Ontario, and a little earlier in colder regions like Ottawa. Below 7°C, all-season and summer rubber hardens and loses grip while winter compound stays soft.
When should I take my winter tires off?
In April, once daytime temperatures hold above 7°C. Take them off too early and a late-season snowfall can catch you out; leave them on into the summer heat and the softer winter compound wears down quickly.
Are winter tires mandatory in Ontario?
No — Ontario doesn't legally require them. But since January 1, 2016 every insurer must offer a winter-tire discount (typically 2–5%) when you run a full set. Quebec, including Gatineau, does mandate winter tires.
Do I need winter tires to drive in Gatineau or Quebec?
Yes. Quebec law requires winter tires with the three-peak mountain snowflake (3PMSF) symbol from December 1 to March 15, with fines of $200–$300. If you commute across the river from Ottawa, have them on by December 1.
What do I do with my other set of tires for the season?
Store them somewhere cool and stable so the rubber doesn't age. Tire Reserve picks up your off-season set, stores it climate-controlled and insured, and delivers it back at the next swap — $200/set/season, all-inclusive. See how it works.
Is it bad to leave tires in a hot garage or shed over summer?
Heat and repeated temperature swings age rubber faster and can lead to cracking. Stable 15–20°C storage protects the set — it matters most for winter and premium tires. That's exactly what climate-controlled storage is for.
Serving Toronto, Ottawa, and Gatineau — pickup, climate-controlled storage, and 72-hour retrieval.
Sort your storage before the swap
Tell us your city and how many sets — we'll pick up your off-season tires, store them climate-controlled and insured, and bring them back when the temperature turns.
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