Kunzum Pass Opening: Planning the Manali-Spiti Road

If you are planning to enter or leave Spiti via Manali, one question will dominate your planning: when do the passes open?

The honest answer is that nobody can tell you for certain in advance. The road from Manali over the high passes into Spiti is closed by snow for much of the year and usually reopens sometime in early summer, but the exact date varies from year to year. This piece explains why, what typically happens in early summer, and how to plan a trip around that uncertainty.

The passes in question

The Manali route into Spiti crosses high ground in two main stages. First, the road from Manali reaches the Lahaul side, nowadays usually through the Atal Tunnel, which has made this first stage much more reliable than it used to be when the only way was over the Rohtang Pass. Then, from the Chandra valley, the road heads towards Batal and climbs to the Kunzum Pass, usually given as somewhere around 4,500 to 4,600 metres, before descending to Losar and the Spiti valley.

It is the stretch from the Gramphu area via Chhatru and Batal to Kunzum that typically remains closed longest. This section is exposed, high and prone to heavy snow accumulation and avalanches.

Why opening dates vary

The date the road reopens depends on several factors:

How much snow fell in winter. A heavy winter means more snow to clear.
When the snow fell. Late-season snowfall in spring can delay clearing.
Weather in early summer. Warm, sunny days help melt and clearing; storms and cold snaps set work back.
Avalanches and landslides. These can block sections that had already been cleared.
Clearing operations. Road agencies work to clear the route, and progress depends on conditions and resources.
Official decisions. Even when a vehicle can technically get through, authorities may keep the road closed to the public until it is judged safe.

Because of all this, the opening date can shift by weeks from one year to the next. Some years it opens relatively early in summer; in others it may be well into the season before regular traffic is allowed.

What June typically looks like

For many years, June has been the month when travellers start to watch the passes closely. It is often around this time that clearing operations progress and the road begins to open, sometimes initially for limited traffic or at certain times of day. We are deliberately not giving a date, because any date we gave would be wrong for some years.

Even after the road opens, early summer conditions can be challenging:

Snow walls may line parts of the road near the pass.
Water crossings swell during the day as snow melts, so many drivers aim to cross the worst sections early in the morning.
Mud and slush can make the surface slippery and rutted.
Sudden weather changes can bring snow, even in summer.
Temporary closures may happen after storms or landslides.

Planning around the uncertainty

If your trip depends on the Manali route, the most important thing is flexibility.

Have a plan B. The Kinnaur route from Shimla is generally open for much more of the year. If the Manali side is closed, you can usually still enter or leave Spiti that way, though it adds time.

Build in buffer days. If you have to wait for a pass to open, or for a temporary closure to clear, spare days give you room to do so without panic.

Consider the direction. Entering Spiti from the Kinnaur side and leaving via Manali means you only need the passes open at the end of your trip, by which time you will know more about conditions.

Ask locally and recently. Drivers, hotel owners in Manali and Kaza, and local news are the best sources of current information. Social media posts can help, but check how recent they are.

Avoid tight connections. Do not book a non-refundable flight out of the nearest airport on the day after you plan to cross the passes.

Later in the season

Once the road is open, it usually stays open through the summer, though storms and landslides can still cause temporary closures. Towards autumn, the passes are typically closed again by snow, often sometime in the latter part of the year. As with opening, the closing date varies.

The monsoon months bring their own concerns. Spiti itself lies in a rain shadow and receives relatively little monsoon rain, but the approach roads, particularly on the Manali and Kinnaur sides, can be affected by heavy rain and landslides. Check conditions carefully if you travel in July or August.

Altitude on the Manali route

The Manali route climbs steeply, taking travellers from Manali to the high pass in a single day in many cases. That is a big jump in altitude for an unacclimatised body. This is one reason many travellers prefer to leave via Manali rather than enter that way. If you do enter via Manali, consider breaking the journey and taking it slowly, and be alert to symptoms of altitude sickness. Our piece on rest days covers this.

A note on Chandratal

The high lake of Chandratal lies near the Kunzum Pass, reached by a side road from near Batal. It is one of the most beautiful places in the region and a popular stop on the Manali route. Access depends on the same seasonal opening, and camping arrangements and rules have changed over the years, so check current regulations before you plan an overnight stay.

The value of waiting

There is something worth saying about the experience of waiting for a pass. For travellers used to having every road open on demand, it can be frustrating. But it is also a reminder of where you are. These are high mountains, and they set the terms. A few days spent waiting in Manali or Kaza for the road to clear are not wasted. They are part of travelling in a place that has not yet been tamed.

Pass opening and closing dates vary every year. Always check current conditions with local authorities and drivers before you travel.