Slovenia on a Japanese Licence — The Side Switch, an IDP & the Vignette

Slovenia rewards Japanese travellers who hire a car — compact, alpine and coastal, with the kind of orderly traffic that feels closer to home than much of southern Europe. Three things shape the first day, and only one of them is a piece of paper.

Switching to the right is the main job

Japan drives on the left; Slovenia on the right. After years of left-hand driving this reversal is what genuinely catches people, and the danger window is the first day: pulling out of a fuel station, taking a roundabout that now flows the opposite way, or glancing the wrong direction at a junction. Collect the car and spend a quiet first hour away from Ljubljana traffic, staying deliberate at each turn until right-side driving feels natural.

The IDP and the vignette

Bring a Geneva-convention International Driving Permit obtained in Japan before departure — Slovenia recognises it, and desks and police expect to see it with your Japanese licence and passport. You cannot get one after arriving, so arrange it at home. Our driving permit checker confirms the detail.

The catch first-timers miss is the e-vignette (e-vinjeta). Slovenian motorways toll electronically with no booths, so you register your number plate online or at a petrol station before joining an A-road. A weekly car vignette is about EUR 16; reaching Bled or the coast without one brings a fine of several hundred euros. The Slovenia vignette guide walks through it.

Speeds and alcohol

Limits are 50 km/h in town, 90 rural and 130 on motorways — well above Japan’s 100 motorway ceiling, so the open road feels fast and the camera enforcement is strict, with a 10 km/h overspeed in the EUR 50-120 band. Slovenia’s 0.05 alcohol limit is looser than Japan’s near-zero stance, but checks are frequent and penalties harsh, so the no-drink habit you keep at home still serves you. Petrol is about $1.58/litre and 112 covers emergencies. Full rules are on our Slovenia driving guide.