When do I need winter tyres in Czechia?
From 1 November to 31 March, whenever there is snow, ice or frost on the road — or the weather makes it likely. It is a conditional duty inside the winter window, not a fixed date: the state of the road decides, not the calendar. Winter tyres must be on all four wheels with at least 4 mm of tread on passenger cars — three millimetres is not enough. On stretches marked with the Zimní výbava (winter equipment) sign they are mandatory from November to March regardless of conditions, dry road included. The on-the-spot fine is up to CZK 2,000, but that is not the expensive part: after a crash on summer tyres your insurer cuts or refuses the payout, and those sums run into hundreds of thousands.
📋 The rules
- 1 Nov–31 Mar: winter tyres required with snow/ice/frost present or expected
- All four wheels, tread min. 4 mm (passenger cars)
- "Zimní výbava" sign = always mandatory in the period, any weather
- Tyre marking: M+S or the snowflake symbol (3PMSF)
- Winter tyres in summer aren't banned — but braking distances grow; insurers warn against it
🔓 Exceptions
- Dry roads with no snow/frost outlook: winter tyres not required outside signed sections
- Motorcycles are exempt from the winter tyre duty
- Vehicles over 3.5 t face a stricter limit — 6 mm of tread on driven axles (4 mm applies below 3.5 t)
⚠️ Penalties & fines
An on-the-spot fine of up to CZK 2,000 — and the police can stop you continuing, so you are left where they pulled you over, paying for the tow yourself. The real cost arrives after a crash: on non-compliant tyres your insurer can cut or refuse the payout, and can recover from you what it pays the other side. Damage to another car or to someone's health then comes out of your pocket and dwarfs the fine and a new set of tyres put together. Insufficient tread is easy to prove — it is measured at the roadside.
📎 Official sources
- Czech Police · Winter tyre obligation (CS) →
- Pneumatiky.cz · Winter tyre duty 2025/26 (CS) →
- ePojisteni.cz · Wrong tyres and reduced insurance payouts (CS) →
❓ Frequently asked
Must I switch exactly on 1 November?
No. The duty runs 1 Nov–31 Mar but bites only when snow, ice or frost is present or expected — the state of the road decides. In the mountains and on signed stretches that means all winter in practice.
Is 3 mm of tread enough?
No. The law requires at least 4 mm on winter tyres for passenger cars, and police can measure the depth right at the roadside. Vehicles over 3.5 t face a stricter 6 mm limit on driven axles.
What does the Zimní výbava sign mean?
On that stretch winter tyres are mandatory from 1 Nov to 31 Mar in all conditions — dry road and ten degrees above zero included. The weather-dependent exemption simply does not apply there.
May I drive on winter tyres in summer?
The law does not ban it, but the softer compound lengthens braking distances and wears out faster. Crash in summer on winter tyres and you may face an insurance dispute over a reduced payout.
Do vans need them?
Yes. Vehicles up to 3.5 tonnes face the same 4 mm limit as passenger cars. Trucks above 3.5 tonnes must carry at least 6 mm of tread on their driven axles — and the depth is measured right at the roadside.
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