Lahaul Winter Guide 2026: Snow Driving & Sissu Tourism

For centuries, the onset of winter meant that the Lahaul Valley would be entirely cut off from civilization for six long months. The 13,050-foot Rohtang Pass would disappear under 20 feet of snow, and the residents of Keylong and Spiti would hoard supplies to survive the deep freeze. However, the inauguration of the Atal Tunnel changed everything. Today, Lahaul is accessible year-round, triggering an explosion of winter tourism. But with this accessibility comes a massive lack of awareness regarding snow driving, black ice, and the sheer brutality of Himalayan winters.

This page is the ultimate, highly-searched guide addressing all the confusion about permits, 4x4 rules, and winter survival in Lahaul.

Atal Tunnel Winter Rules (4x4 Vehicles & Rohtang Permits)

The internet is filled with contradictory information regarding permits for Lahaul in winter. Let's clear this up once and for all for 2026:

• The Rohtang Pass is CLOSED: From mid-November to May, the old Rohtang Pass route is officially closed due to massive snow accumulation. Do not apply for a Rohtang permit in winter.
• NO Permit needed for Atal Tunnel: You do not need any permit to drive through the Atal Tunnel to enter Lahaul. However, the Kullu Police enforce strict timing and vehicle restrictions depending on the weather.
• Tunnel Timings: In peak winter (Jan-Feb), the tunnel is often closed for tourists after 3:00 PM due to the risk of falling temperatures causing black ice formation near the North Portal.

Driving in Snow: 4x4 Mandate and Black Ice on Manali-Leh Highway

If you are planning to drive your own car (a hatchback, sedan, or a 2WD SUV like a Creta or Harrier) to Sissu in January, you need to understand the reality of Himalayan snow driving.

Solang Valley and Dhundi Police Checkposts for Lahaul

When it snows heavily, the Manali police set up barricades at Palchan or the Dhundi South Portal. They will outright ban all 2WD (Two-Wheel Drive) vehicles from proceeding. Only 4x4 vehicles (Thar, Gypsy, Fortuner) equipped with snow chains are allowed to cross the tunnel.

How to Drive on Black Ice in Lahaul Valley (Winter Tips)

The biggest killer on winter roads is not thick snow, but Black Ice. This is a thin, completely transparent layer of ice that forms on the tarmac when melted snow freezes overnight. It is invisible to the driver.

Snow Driving Tips: Never apply sudden brakes on black ice—your car will spin out of control instantly. Use engine braking (driving in lower gears). Do not make sharp steering movements. If you do not have snow driving experience, do not drive. Hire a local Manali taxi driver; they are experts at judging black ice.

Sissu Winter Tourism: Snow Activities & Frozen Waterfall

Exiting the North Portal of the Atal Tunnel brings you directly to Sissu. In winter, Sissu transforms into an absolute snow park.

• The Frozen Waterfall: The famous Sissu waterfall freezes mid-flow, creating a towering cascade of solid ice. It is a spectacular sight and highly photogenic.
• Sissu Helipad Area: The massive flat grounds near the river (often called the helipad area) become covered in 3 to 4 feet of snow. Locals set up snowmobiles, tube slides, and ski rentals here.
• Accommodation Warning: Many homestays in Sissu shut down in peak winter due to frozen water pipes. If you plan to stay overnight, verify that the property has running water (or provides hot water buckets) and room heaters.

Keylong During Winter Snowfall: Is it Open for Tourists?

While Sissu is bustling with tourists, Keylong (30 km further) offers a completely different, starkly silent winter experience. The road from Sissu to Keylong passes through avalanche-prone zones, meaning the route can be temporarily blocked for a day or two after heavy snowfall.

Most dhabas and shops in Keylong pull their shutters down. If you want extreme isolation, a raw survival experience, and the chance to see ancient monasteries buried under snow with absolutely zero tourists around, Keylong is the place. Just ensure you carry enough cash and emergency medicines, as supply chains are heavily delayed.

Winter Survival Guide: Extreme Cold & Minus Temperatures in Lahaul

Do not underestimate a Lahaul winter. The temperature drops to -15°C, and the wind chill makes it feel like -25°C.

• Layering is Mandatory: A single thick jacket will not save you. You need a base layer (thermal innerwear), a mid-layer (fleece or woolen sweater), and an outer shell (a windproof, waterproof down jacket).
• Protect Your Extremities: Frostbite happens fast. Wear double layers of woolen socks, waterproof snow gloves (not regular knitted gloves), and a woolen cap that covers your ears.
• Footwear: Regular sneakers will get wet in the snow instantly, freezing your toes. Wear proper waterproof trekking boots or rent gumboots from the shops near Solang Valley before crossing the tunnel.
• Altitude Sickness (AMS): The cold restricts oxygen flow. Even though Sissu is at 10,200 feet, the severe cold amplifies the symptoms of AMS. Keep yourself hydrated with warm water (carry a thermos flask).