Kunzum Pass Opening Date 2026: Latest Road Status, Weather & Travel Updates
Kunzum Pass is the gatekeeper of the Manali Spiti route. Every year, the entire Manali to Kaza road trip hinges on one thing: whether this high mountain crossing has been cleared of snow. Get the timing right, and you get one of the most spectacular drives in India. Get it wrong, and you're turned back at Gramphu or Batal with nowhere to go but Kinnaur.
This guide breaks down what's actually happening at Kunzum Pass opening date 2026 season, the realistic opening window, how road conditions evolve month by month, what the weather does to your plans, and how to build a route around a pass that answers to snowfall, not to calendars.
Why Kunzum Pass Controls the Entire Manali-Spiti Route
Kunzum Pass sits at roughly 4,551 metres, connecting the Lahaul valley to the Spiti valley road update. It's the only road door into Spiti from the Manali side during summer. There are two ways into Spiti overall:
Shimla-Kinnaur route: Enters from the south, stays accessible for most of the year, and doesn't depend on Kunzum at all. Gentler altitude gain, more forgiving for first-timers.
Manali-Kaza route: Enters from the north via the Atal Tunnel, Gramphu, Chhatru, Batal, and then straight over Kunzum before dropping into Losar and Kaza. This is the dramatic route, and it's the one that shuts down completely for close to seven months every winter.
If your Spiti itinerary depends on completing the full Manali-Kaza loop, Kunzum's status is the single most important thing to track before you leave.
When Does Kunzum Pass Actually Open in 2026?
There's no fixed date. The opening depends entirely on how much snow accumulated over winter and how quickly the Border Roads Organisation (BRO) can clear it. Historically, the pass has opened anywhere from early May to early July, with most years landing somewhere in the last week of May through mid-June.
Recent seasons give a useful reference point:
2022: Opened around 3 May, an unusually early season
2023: Official movement allowed from 1 June, with timed crossing windows
2024: Opened in the first week of June
2025: Reopened 24 May, initially restricted to 4x4 vehicles only
2026: BRO completed clearance from both sides in late May, and the Manali–Kaza highway came through as fully functional shortly after
Since the Atal Tunnel opened in 2020, BRO no longer needs to clear Rohtang Pass before starting work on Kunzum, which has shaved a couple of weeks off the typical opening timeline in recent years.
The bigger point: an opening date from a previous year tells you almost nothing about this year. Snowfall in March and April decides everything, and BRO's clearance pace is never identical twice.
Road Status Through the Season: What Changes and When
Closed (roughly November–April): Kunzum is buried under several feet of snow, sometimes 15–20 feet near the top. BRO clearance work typically doesn't begin in earnest until March or April. Spiti is reachable only through Shimla–Kinnaur during this stretch.
Transition (May): This is the uncertain middle ground. Clearance crews work through the month, and the Kaza side of the pass usually opens before the Gramphu side, since the Gramphu–Batal stretch is more avalanche-prone and takes longer to secure. Even after the pass technically opens, except restrictions, 4x4-only access is common in the first days, with sedans and low-clearance vehicles cleared later.
Early opening (late May-early June): Once BRO road updates from both directions, the pass opens for general traffic. Road surfaces are still rough, broken tarmac, gravel, embedded rock, and meltwater crossings are normal between Gramphu and Losar. This stretch is the hardest driving on the entire Spiti circuit, regardless of the year.
Stabilised summer (mid-June onward): By mid-June, enough vehicles have driven the route, and BRO has done initial repairs, so conditions become far more predictable. This is generally the point where the full Manali-Kaza route feels manageable rather than uncertain.
Peak season (July-August): The most stable window of the year, and the one most first-time travellers are pointed toward. Traffic is heaviest bikes, SUVs, and tour vehicles share the road and mid-July to mid-August in particular sees the highest volume. Kunzum itself sits in a rain shadow and stays largely dry, but the Manali-side approach through Lahaul is exposed to monsoon rain, and flash floods or landslides near Chhatru, Chhota Dhara, or the river crossings near Batal are a real possibility. Building at least one buffer day into a July or August itinerary is a genuinely good idea, not just caution for its own sake.
Late season (September-October): Cleaner roads, better visibility, and the clearest light of the year, with noticeably fewer vehicles than July. Nights turn cold quickly. The pass usually shuts with the season's first heavy snowfall, typically by mid-to-late October and that can happen within 48 hours of a single storm, so this isn't a window to push too far into.
What About Chandratal? A Different Timeline Entirely
One of the most common planning mistakes is assuming that "Kunzum is open" automatically means Chandratal Lake is reachable. It doesn't work that way.
The lake sits off a separate 14 km diversion road branching from Batal, and that stretch needs its own clearance independent of Kunzum. In most years, the Chandratal road status access road opens one to two weeks after Kunzum itself, which typically puts it somewhere in early-to-mid June. Campsites near the lake usually don't set up until the diversion road has seen enough traffic to pack down properly, so arriving right when Kunzum opens and expecting a functioning campsite is a recipe for disappointment you may find an empty lakeside, no food stall, and water still partially frozen at the edges.
For a dependable overnight Chandratal experience, mid-June through September is the safer planning window, with July favoured by families and first-timers, and September offering the clearest skies and thinnest crowds.
Building a Route Around Kunzum's Timing
If your trip is in April or May: Don't build your itinerary around crossing Kunzum. Enter and explore Spiti via Shimla–Kinnaur instead, and treat a Manali exit as a bonus only if conditions genuinely allow it close to your travel date.
If your trip is in June: Enter from Shimla for gradual acclimatisation, then cross Kunzum toward Manali only in the second half of the month, once the pass has stabilised. Early June crossings are possible in some years but carry real uncertainty around vehicle restrictions and diversion-road conditions to Chandratal.
If your trip is in July or August: This is the most forgiving window for a full Manali–Kaza loop with Chandratal included. Roads are at their most predictable, though monsoon rain on the Lahaul approach means buffer days are worth planning for regardless.
If your trip is in September or into October: A strong choice for clearer weather and lighter traffic, but keep a close eye on the calendar the season can end abruptly once the first real snowfall hits.
A route that also works well for acclimatisation: enter through Kinnaur (Sarahan or Sangla, then Nako or Kalpa), continue to Tabo and Kaza, and cross Kunzum toward Manali on the final leg. By the time you reach the pass, you're already acclimatised, and the ascent from the Losar side is gentler and generally better maintained than the approach from Gramphu.
Practical Notes for Crossing Kunzum
Cross in daylight, ideally before 2 pm: Weather at this altitude turns quickly in the afternoon, and wind picks up.
Fuel up before you commit: There's no pump between Manali/Sissu and Kaza on this stretch top off before Gramphu and again in Kaza if you're heading the other direction.
Expect no mobile network at the top: Coverage is patchy from Gramphu onward; don't rely on it for road-status checks once you're already on this stretch.
Vehicle choice matters: Compact SUVs handle June–July and the October window comfortably. Sedans and low-clearance cars should generally be reserved for late August into September, when the road surface is at its best, and even then, ground clearance is a permanent consideration on this route.
Verify the day you travel, not the week before: The official Lahaul-Spiti district road status page is the standard reference point, but local hotel owners, taxi operators, and guides in Kaza or Manali track conditions in real time and are often faster to reflect an overnight change.
Keep a backup plan: If Kunzum closes mid-trip due to weather, the only alternative way in or out of Spiti valley travel is the Shimla–Kinnaur route. It adds distance, but it's the established fallback every season.
Frequently Asked Questions
Is Kunzum Pass open right now?
It depends entirely on the current season and recent weather. Kunzum is typically open from late May or early June through mid-to-late October, and closed the rest of the year. Always check the official Lahaul-Spiti district road status or call a local operator before you set out, since conditions can change overnight.
What is the best month to cross Kunzum Pass?
July and August offer the most stable, predictable conditions and are generally recommended for first-time travellers, though September brings clearer skies and lighter traffic if you'd rather avoid peak-season crowds.
Does Kunzum opening mean Chandratal is also accessible?
Not automatically. The Chandratal diversion road from Batal usually clears one to two weeks after Kunzum itself, and campsites often take a little longer to become fully operational.
What kind of vehicle do I need for the Manali–Kaza route?
A compact SUV or similar high-clearance vehicle is strongly recommended for most of the season. Sedans are only realistic in late August to September, when road conditions are at their best.
What's the backup plan if Kunzum closes during my trip?
Reroute through the Shimla–Kinnaur side. It's the only alternative way in or out of Spiti when the Manali route is blocked, and it's the fallback locals and operators default to every season.
