Timor-Leste Tyre Rules 2026: 1.5 mm, One Neighbour

Timor-Leste occupies the eastern half of one island and shares that island with Indonesia. It has no seasonal tyre rule, no marking requirement and no stud regime — the climate gives none of them anything to attach to.

The tread floor is 1.5 mm, a tenth below the 1.6 mm used across Europe under Council Directive 89/459/EEC and the same figure applied in Australia and New Zealand. Traffic keeps to the left.

Tyre Law Summary for Timor-Leste

Two wet seasons, not one

The north coast around Dili has a single wet season, roughly December to April. The south coast has two, with a second burst of rain in May and June, which is why a route that is straightforward in one direction can be closed in the other during the same trip.

What that means for tyres is depth rather than compound:

• Washouts on the south-coast road. Rivers cross the alignment on causeways rather than bridges in several places, and the surface after a crossing is loose stone.
• Mud on unsealed sections. Once the tread is packed there is no water left to move, and 1.5 mm of remaining depth behaves like a slick.
• Landslips on the mountain roads. The Dili to Ainaro and Dili to Baucau interior routes cut across steep ground, and the repaired sections are usually gravel.

Oecusse is a separate journey

Timor-Leste is not one continuous territory. Oecusse sits on the north coast of Indonesian West Timor, cut off from the rest of the country. Driving there means leaving Timor-Leste, crossing Indonesian territory and re-entering — two border posts for a domestic journey — or taking the coastal ferry from Dili instead.

That is the single most useful thing to plan for here, and it is a paperwork question rather than a tyre one.

Crossing into Indonesia

• Indonesia: the only land neighbour, reached through the main crossing at Batugade on the north coast. No winter tyre season on either side, both countries keep left, and the tread floor moves from 1.5 mm to 1.6 mm at the line.

Everything else in the region — Australia, Papua New Guinea, the Philippines — needs a sea or air crossing, and none of them applies a seasonal tyre rule either.

For speed limits, licence requirements and equipment rules, see the Driving in Timor-Leste guide.