When does the Transfăgărășan open, what are the driving hours, and is the Bâlea Lake tunnel accessible in winter?

The opening date is not fixed, and that is the trap

The Transfăgărășan is a high alpine road crossing the Făgăraș mountains, with the Bâlea Lake tunnel at roughly 2,042 m. The section between Bâlea Cascadă in Sibiu county and Piscul Negru in Argeș county is closed by snow for much of the year and reopened only when the road authority, CNAIR, finishes clearing it.

In 2026 that was 12 June. In other years it has been earlier or later depending on snowfall and avalanche risk. Do not plan a trip around a date you read in a blog — check the current status in the days before you drive.

The autumn close is equally unpredictable. The road stays open into October or November while conditions allow, and the 2025 closure happened around 20 October. Past mid-October, check daily bulletins and expect the possibility of snow tires being required or the road being shut without much notice.

Driving hours: 07:00 to 21:00

Even in the middle of summer, the high section is not open 24 hours. It is drivable from 07:00 to 21:00 and closed overnight for safety.

That matters more than it seems. Sunset in the Făgăraș is early relative to the valleys, the road is narrow with tight hairpins and no lighting, and the overnight closure is enforced with barriers. If you are driving from Sibiu to Curtea de Argeș, do it as a daytime run rather than an evening one.

Fuel up before you start. Services on the high section are limited to what clusters around Bâlea Lake, and they are seasonal.

The Bâlea tunnel in winter

The tunnel itself is a structure that pierces the mountain, and it is often described as if you could drive to it in winter. You cannot. When the high section closes, the approaches from Bâlea Cascadă on the north side and Piscul Negru on the south are both blocked by deep snow and closed with barriers.

If you want to see Bâlea Lake in winter, the route is the cable car from the lower station near Bâlea Cascadă, which runs year-round and takes you up to the lake independently of the road.

In summer, the tunnel is simply part of the drive — unlit, narrow, and a strange experience after the switchbacks. Headlights on.

What the drive is actually like

We came at this road from the west, having stayed in Sibiu for two nights in October 2022, and the practical approach is from Sibiu south via Boița and the Olt valley, then up to Bâlea Cascadă.

The northern approach is the famous part: a sequence of long viaducts and hairpins climbing to the lake. It is spectacular and it is slow, because everyone stops. Pull over in the signed laybys rather than stopping in the road — that is the single most common cause of the jams up here.

Bears. There are brown bears along the road, and the authorities warn about them every season. Do not approach or feed them: feeding is prohibited by law (Law no. 407/2006, as amended) and fines run from 10,000 to 30,000 lei. A bear that has been fed loses its fear of people, which is how it ends up being relocated or destroyed. Stay in the car, keep food out of sight, and do not stop for photographs at close range.

Expect weather to change with altitude, even in July. Cloud can sit on the ridge and reduce visibility to nothing in minutes, and there is no mobile signal in stretches. Carry a jacket and water regardless of the forecast in Sibiu.

The southern descent toward Curtea de Argeș is longer and less dramatic, and it puts you within reach of the Argeș valley monasteries. If you are doing the road one way, north to south sets up that second day well.

Frequently asked questions