The timing of a seasonal tyre swap comes down to one number, 7°C, with a rough calendar that follows from it. Get the timing right and each tyre spends its life in the conditions it was built for.
The 7°C rule
The reason 7°C matters is the rubber. Below about 7°C, a winter tyre's soft compound grips better than a summer tyre's firmer one, on snow, ice and even a cold, dry road. Above it, the summer tyre regains the advantage. So the switch is guided by temperature, not the calendar or the snow forecast:
- Fit winter tyres when average temperatures start falling below 7°C
- Switch back to summer when they are consistently above it
Watching the trend in average temperatures, rather than reacting to one cold or warm day, is what gets the timing right.
The rough calendar
In the UK, that 7°C threshold maps to a familiar pattern:
- Winter tyres on: around October or November
- Summer tyres back on: around March or April
A long-standing rule of thumb across Europe is "October to Easter" for winter tyres. It is only a guide, a mild autumn or a late cold snap shifts it, but it captures the rhythm.
Don't run winter tyres all year
It is tempting to leave winter tyres on to save the swap, but it is a false economy. In summer heat the soft compound:
- Wears quickly, shortening the tyre's life
- Feels vaguer in dry handling
- Loses the very grip advantage that justified fitting it
The same applies in reverse, summer tyres left on through a hard winter give up grip when it is needed most.
Storing the off-season set
Whichever set comes off goes into storage until next time. Done properly, clean, labelled, somewhere cool and dark, a seasonal set comes back in the same condition it went away, as the seasonal storage guide sets out. A poorly stored set can age or distort before its next outing.
Or skip the swap entirely
The way to avoid the whole twice-a-year job is an all-season tyre, which stays on year-round and needs no switching, storage or timing. It gives up a little peak performance at each extreme in exchange for never thinking about the swap again, which for many drivers is the deciding factor.
From the workshop: forget the date, watch the thermometer. Once the mornings are steadily below seven degrees, that's your cue for winters. Steadily above it in spring, back to summers. And don't leave winter tyres on through July, they'll be bald by autumn and they handle like jelly in the heat.
Sources and accuracy. This reflects the widely-cited 7°C guideline and typical UK seasonal timing at the time of writing. Conditions vary year to year. If anything here looks wrong, get in touch and we will check it and put it right.
Common questions
When should I switch to winter tyres?+
When average temperatures start dropping below about 7°C, which in the UK is usually around October or November. The 7°C threshold matters more than the date, because that is where winter rubber starts to out-grip summer rubber, snow or no snow.
When should I switch back to summer tyres?+
When temperatures are consistently above about 7°C again, typically around March or April in the UK. A common rule of thumb is 'October to Easter' for winter tyres, with summer tyres back on for the warmer half of the year.
Can I leave winter tyres on all year?+
It is not advisable. In summer heat the soft winter compound wears quickly and handling feels vaguer, so you lose grip and tyre life. Winter tyres are best swapped back once it warms up, or skip the swap entirely with all-season tyres.
What temperature is best for changing tyres seasonally?+
Around 7°C is the guide. Below it, winter tyres grip better; above it, summer tyres do. Watching the trend in average temperatures rather than a single cold or warm day is the reliable way to time the change.