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Iran Ties Winter Tyres to Conditions, Not Dates, 2026-27

Data verified:

4 min read
Driving Side Right
Motorway Limit 120 km/h
Alcohol Limit
Min. Driving Age 18
Winter Tyres Varies
Region Asia
Petrol: $0.05/L Diesel: $0.03/L

Iran drives on the right side of the road. The minimum driving age is 18. The motorway speed limit is 120 km/h. The general emergency number is 110. Foreign drivers should carry an International Driving Permit (IDP) alongside their valid national licence.

Quick Answer

Iran tyre rules: Winter tyres are required when conditions demand it, but defining those conditions is where it gets complex. Check if your tyres comply with our checker below.

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Iran’s winter tyre rule follows the weather rather than the calendar: whenever snow, ice or slush appear on the road, tyres must match, and that mostly plays out from November through March in the mountainous regions. Studded tyres are permitted on a seasonal basis. Drivers touring the country need to watch the terrain, not just the date, since lowland routes may never trigger the rule at all.

For drivers visiting Iran or locals maintaining their vehicles, most fines here are avoidable with five minutes of preparation.

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Tyre Law Summary for Iran

RegulationStatus
Winter tyresSituational
Required periodNovember - March (mountainous regions)
Minimum tread depth1.6 mm
Recommended tread3.0 mm
Studded tyresAllowed (seasonal)
All-season acceptedYes
Required markingsM+S or 3PMSF

Winter Tyre Requirements in Iran

Iran uses a situational winter tyre system. The period when winter conditions typically occur: November - March (mountainous regions).

This means you need to judge conditions yourself. If you are visiting Iran between November and March, winter tyres are effectively essential — even if the law technically only requires them “when conditions demand it,” you will not know in advance whether you will hit a frost patch or snow shower.

Minimum Tread Depth in Iran

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

For Iran’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 DepthWet Braking (80 km/h)Risk Level
8 mm (new tyre)~26 metresLow
3 mm~32 metresModerate
1.6 mm (legal minimum)~43 metresHigh
Road surface temperatures in Iran can exceed 60°C in summer, softening rubber and accelerating wear. A tyre near 1.6 mm in these conditions has far less grip than the same tread depth in a cooler climate.

Studded Tyres in Iran

Studded tyres are allowed in Iran during the winter season. Studs provide superior grip on sheet ice and hard-packed snow, but they reduce grip on dry and wet asphalt. They also increase road noise significantly. Use them only if you regularly drive on icy roads.

All-Season Tyres in Iran

All-season tyres with the M+S marking are accepted in Iran. 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 Iran

Driving with illegal tyres in Iran risks fines and, more critically, insurance problems. If you have an accident and your tyres do not meet the legal standard, your insurer may reduce or refuse your claim entirely.

Tyre Selection for Iran’s Conditions

With hot climate with monsoon seasons, tyre management in Iran differs from temperate regions:

  • Summer-rated tyres work year-round in most of Iran
  • Heat is the primary enemy — it accelerates ageing and can cause blowouts on under-inflated tyres
  • Check pressure before any long journey, ideally in the morning before the sun heats the rubber
  • If you drive on unpaved roads, consider tyres with reinforced sidewalls

Road Conditions and Tyre Wear in Iran

Road quality in Iran varies significantly between the main routes and the back roads. Highways connecting Tehran to other major cities are generally surfaced, but secondary and rural roads may be unpaved or damaged.

Practical tips for driving in Iran:

  • Carry a full-size spare (not a space-saver) if driving outside major cities
  • Check tyre sidewalls for cuts and bulges after driving on rough roads
  • Reduce speed on unpaved sections — stones and debris cause punctures

How Iran’s Tyre Laws Compare to Neighbours

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

  • Pakistan: Winter tyres not required. Tread: 1.6 mm. Studded: not applicable.
  • Bhutan: Winter tyres not required. Tread: 1.6 mm. Studded: restricted.
  • India: Winter tyres not required. Tread: 1.6 mm. Studded: not applicable.
  • Bangladesh: Winter tyres not required. Tread: 1.6 mm. Studded: not applicable.

Need the full picture? Our Driving in Iran page covers speed limits, fines, equipment rules, and more.

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Tyre Regulations Summary

Winter TyresSituational
PeriodNovember - March (mountainous regions)
Min. Tread Depth1.6 mm
Studded TyresAllowed Seasonal
All-SeasonAccepted
Marking

Driving through more than one country this winter? Compare winter tyre rules, dates and legal tread depths for every country →

Driving in Iran — Key Facts

Speed Limits

  • Urban: 50 km/h
  • Rural: 85 km/h
  • Motorway: 120 km/h

Emergency Numbers

  • Police: 110
  • Ambulance: 115
  • Fire: 125
  • General: 110

Required Equipment

  • Warning Triangle: Required
  • Reflective Vest: Not required
  • First Aid Kit: Required
  • Fire Extinguisher: Required

Country Info

  • Capital: Tehran
  • Driving Side: Right
  • Languages: Persian (Farsi)
  • Currency: Iranian rial (﷼)
  • Population: 85,961,000

Useful Driving Phrases in Arabic

EnglishArabic
Where is the nearest petrol station?أين أقرب محطة وقود؟
I need helpأحتاج مساعدة
I had an accidentتعرضت لحادث
Where can I park?أين يمكنني ركن السيارة؟
Speed limitحد السرعة

Complete Driving Guide for Iran

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Frequently Asked Questions

Summer tyres rated for high temperatures are the best choice for Iran's hot, arid climate. Avoid all-season tyres as their softer compound wears faster in sustained heat. Check the speed rating on your tyres — higher-rated tyres handle heat better.

The legal minimum tyre tread depth in Iran is 1.6 mm. However, tyre safety experts recommend replacing tyres at 3 mm for wet conditions and 4 mm before winter. At 1.6 mm, wet braking distance at 80 km/h is approximately 65% longer than with new tyres.

Check tyre requirements for your trip

Winter tyres in Iran are situationally required — you must have them when winter conditions (snow, ice, slush) are present on the road. There is no fixed date mandate, but driving without appropriate tyres in wintry conditions will result in a fine.

Check tyre requirements for your trip

Studded tyres are not commonly used or regulated in Iran. Given the climate, standard tyres appropriate for the season are sufficient for safe driving.

Check tyre requirements for your trip

Reputable rental companies in Iran should provide vehicles with season-appropriate tyres. Always confirm this when booking, especially if travelling during winter. Inspect the tyres when collecting the vehicle — check tread depth and look for visible damage. Report any concerns before driving away.

Check tyre requirements for your trip

Iran drives on the right. Tyre wear patterns may differ if your vehicle was designed for left-hand traffic, as weight distribution changes. Check tyre pressure monthly, inspect for damage regularly, and never mix tyre types on the same axle.

Check tyre requirements for your trip

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