South Korea's Tyre Rule: 1.6mm Min, 3.0mm Advised, 2026-27

South Korea’s traffic law sets a 1.6mm minimum tread depth and nothing more — there is no winter tyre mandate on the books. Studded tyres are restricted rather than banned outright, so check local rules before fitting a set. Tyre shops commonly advise replacing closer to 3.0mm, well ahead of the legal floor, for better wet-road grip.

For drivers visiting South Korea or locals maintaining their vehicles, a quick read now is cheaper than any ticket later.

Tyre Law Summary for South Korea

Winter Tyre Rules in South Korea

Winter tyres are not mandated in South Korea, but they are still a smart choice if temperatures regularly drop below 7°C. At that point summer tyre rubber becomes too hard for effective braking, and the stopping distance increases dramatically.

Minimum Tread Depth in South Korea

The minimum tread depth enforced in South Korea is 1.6 mm. This is measured across the central three-quarters of the tread, all the way around the tyre.

For South Korea’s roads, the practical replacement threshold is 3.0 mm — well above the legal minimum. The difference in wet braking at 80 km/h:

Tread inspection in South Korea: look for the TWI bars moulded into your tyre grooves. When these are flush with the tread surface, you are at 1.6 mm — replacement is overdue.

Studded Tyres in South Korea

Studded tyres are restricted in South Korea. There may be seasonal windows, regional rules, or maximum stud specifications. Check local regulations before fitting studded tyres, especially if you are driving across regional borders.

All-Season Tyres in South Korea

All-season tyres with the M+S marking are accepted in South Korea. For drivers who prefer not to switch tyres seasonally, they offer a practical middle ground — adequate in mild winters and acceptable in summer heat, though not optimal in either extreme.

Penalties for Tyre Violations in South Korea

Tyre violations in South Korea carry fines and may affect your licence. For context on enforcement severity: a seatbelt violation costs KRW 30,000 (approx. EUR 20), so expect tyre offences to be taken at least as seriously.

Tyre Considerations for South Korea’s Conditions

With seasonal climate with monsoons, South Korea presents moderate tyre challenges:

• Wet autumn and winter roads demand good tread — do not push tyres to the 1.6 mm legal limit before replacing them
• Summer heat increases pressure; winter cold decreases it. Check monthly
• If you mainly drive in urban areas with mild winters, all-season tyres are practical. For mountain routes or frequent winter driving, dedicated seasonal tyres are the safer option

Road Conditions and Tyre Wear in South Korea

South Korea has a well-maintained road network. Tyre wear tends to be predictable and even on main roads. Urban stop-and-go traffic causes shoulder wear, while longer highway stretches wear the centre. Regular rotation (every 8,000–10,000 km) keeps wear even.

How South Korea’s Tyre Laws Compare to Neighbours

If you are driving across borders from South Korea, tyre regulations may change at each crossing:

• Japan: Winter tyres situational (Prefectural regulations; Hokkaido, Tohoku require winter tyres in winter). Tread: 1.6 mm. Studded: restricted.
• China: Winter tyres not required. Tread: 1.6 mm. Studded: restricted.

For speed limits, traffic rules, and licence requirements in South Korea, see our Driving in South Korea guide.