Almost every Spiti Valley enquiry we get eventually turns into a question about Kunzum Pass, specifically whether it will actually be open on the traveller’s chosen dates. This is not a minor detail on this particular trip, the pass is the road connection between Spiti and Manali, and if it is closed, your entire circuit plan changes. Getting the timing right matters more here than on almost any other route we run.
Here is exactly how the season works, how the pass fits into the wider eight day circuit, and how we plan a booking around it so your dates and the pass being open actually line up.
The short answer
Kunzum Pass is reliably open only from around mid June to September. Outside that window, snow closes it and the road stays shut, sometimes into early June and sometimes reopening again as late as October depending on that year’s weather, which is why we always confirm the pass is actually open before locking in your dates rather than going by a fixed calendar rule.
Why the pass closes at all
Kunzum Pass sits at high altitude on the route connecting the Spiti valley to Manali, and like most high Himalayan passes, it is simply not accessible once winter snow builds up. The Border Roads Organisation clears and reopens it each year once conditions allow, and closes it again once the first heavy snow of the season makes the road unsafe. This is not a fixed date on a calendar, it shifts a little year to year depending on how the winter and the following melt actually go, which is exactly why mid June to September is a reliable window rather than an exact opening and closing date you can plan a trip around a year in advance.
The full circuit, and where the pass fits into it
Kunzum Pass is not the destination, it is the connecting road on the way out of a longer circuit through Kinnaur and Spiti. Understanding the full eight day route makes it clear why the pass being open or closed changes the entire trip, not just one day of it.
| Day | Plan |
|---|---|
| Day 1 | Mohali or Chandigarh to Narkanda or Sarahan, driving up into the Kinnaur foothills, overnight stop before the higher stretches |
| Day 2 | To Kalpa via the Kinnaur valley, through Sangla and Chitkul if time allows, overnight in Kalpa with views of the Kinner Kailash range |
| Day 3 | Kalpa to Tabo, crossing into Spiti, stopping at Nako Lake, overnight in Tabo near its thousand year old monastery |
| Day 4 | Tabo to Kaza, visiting Dhankar Monastery en route, arriving in Kaza, the region’s main town |
| Day 5 | Kaza local sightseeing, Key Monastery, and the high altitude villages of Langza, Hikkim and Komic |
| Day 6 | Kaza to Chandratal, driving to Chandratal Lake, the Moon Lake, at around 4,300 metres, overnight camping near the lake |
| Day 7 | Chandratal to Manali via Kunzum Pass, crossing the pass and the Rohtang stretch into Manali, only possible when the pass is open |
| Day 8 | Manali to Mohali or Chandigarh, the final leg back down to the tricity |
Day 7 is where the pass matters directly, it is the only road connecting Chandratal back out towards Manali on this itinerary. If the pass is closed, this circuit cannot be completed the way it is planned, which is exactly why we confirm pass status against your actual travel dates before booking rather than assuming the general season applies to your specific week.
Which months inside the window are actually the best
Mid June to September all fall inside the open window, but they are not identical for a traveller’s experience.
| Period | What to expect |
|---|---|
| Mid to late June | Pass has usually just reopened, roads can still be rough from winter, fewer crowds, Chandratal’s surroundings still carrying some snowmelt |
| July and August | Peak season, most stable road conditions and warmest weather, also the most crowded and the period Kinnaur’s lower stretches can see monsoon related landslide risk |
| September | Clearer skies, thinner crowds, cooler nights, generally considered the most comfortable month by travellers who can be flexible on timing |
For most families and first time visitors to Spiti, we point towards July or August for the most predictable road conditions, and September for anyone who prioritises fewer crowds and clearer mountain views over slightly warmer weather. Mid June works well for travellers comfortable with a rougher, quieter start to the season.
Why we recommend an SUV or Innova Crysta, not a sedan
The roads through Spiti and over Kunzum Pass are rougher and sit at higher altitude than our other hill packages, and this is not a minor comfort preference, it is a real difference in how reliably a vehicle handles the terrain.
| Car type | Seats | Suitability for the Spiti circuit |
|---|---|---|
| Sedan | 4 | Not recommended, low ground clearance struggles on the rougher stretches near Kunzum Pass |
| SUV / MUV | 6 | Recommended, handles the terrain reliably with a comfortable seating position |
| Innova Crysta | 7 | Recommended, our most common choice for this circuit, higher clearance and stable on the long climbing stretches |
This circuit is billed as a per day dedicated car hire like our other multi day tour packages, with the exact quote depending on which of these two car types you choose and your confirmed dates, rather than a flat per kilometre fare for the whole eight days.
Altitude is the other thing that shapes your trip dates
Kaza and Chandratal both sit at high altitude, above 3,500 metres in places, and this matters for planning independent of whether the pass is open. Altitude sickness is a real risk on this circuit regardless of which month you travel in, since the elevation is the same all season. Going slow on the first couple of days, staying well hydrated, and avoiding a rushed itinerary that pushes straight to the highest points without acclimatisation are all worth planning for, whichever month you pick within the open window.
- Build in the gradual altitude gain the eight day itinerary already follows, rather than compressing it to save a day
- Drink more water than feels necessary, dehydration makes altitude symptoms worse
- Tell your driver immediately if anyone in the group feels unwell, headache, nausea or breathlessness beyond normal exertion are worth stopping for
- Pack warm layers regardless of month, nights at Chandratal and Kaza stay cold even in peak summer
- Carry any regular medication in extra supply, since a weather delay near Kunzum Pass can add an unplanned day
What happens if the pass is closed on your planned dates
If your travel dates fall right at the edge of the season, either in early June before the road has fully cleared or late September as the first snow risk returns, and the pass turns out to be closed, the circuit can still run, just with the exit route changed. Rather than crossing Kunzum Pass into Manali, the trip returns the way it came, back out through Kinnaur towards the tricity, or in some seasons the circuit is planned to start from Manali instead of Kinnaur, depending on which side is more reliably open at the time. This is exactly why we confirm pass status against your specific dates before booking rather than after, so you know which version of the route you are actually getting.
