Sissu (Sissu / Khangsar) is a Lahaul village on the Manali–Leh Highway, about 48 km from Manali through the 9 km Atal Tunnel. At roughly 3,250 metres, it offers waterfall views, barren Lahaul landscapes, and a quieter alternative to crowded Manali — with Keylong, Tandi, and the greater Spiti–Leh corridor within day-trip or multi-day reach.
This guide covers Sissu weather and snow, how to reach from Delhi, the Atal Tunnel leg, nearby sights, altitude tips, and whether the route is open in winter.
Quick Facts About Sissu
Location & distance
- Where: Lahaul Valley, Himachal Pradesh — beyond Atal Tunnel on NH-3
- Manali to Sissu: ~48 km (~1.5–2 hours via tunnel)
- From Delhi: ~540 km (12–14 hours; best split over 2 days)
- Altitude: ~3,250 m above sea level
- Access: Atal Tunnel (Rohtang Tunnel) — open most of year
- Nearest town: Keylong (~65 km toward Leh)
1. Sissu Village — authentic Himalayan experience
Traditional mountain village life
Sissu village sits in a side valley off the highway — stone houses, narrow lanes, homestays, and cafés serving travellers on the Manali–Leh route. It is a good acclimatization stop before pushing toward Keylong, Sarchu, or Ladakh.
Village highlights
- Traditional Lahauli architecture built for heavy snow
- Homestays and guesthouses along the highway and village lanes
- Local shops for woollens and basic supplies
- Himachali and simple North Indian food at dhabas
- Sissu waterfall — iconic photo stop above the village
- Quiet walks with peak views when weather is clear
Best time: June–September for easy access; October for clarity; winter for snow scenes if roads are open.
2. Keylong — Lahaul's main town
Gateway toward Spiti and Ladakh
Keylong, about 65 km from Sissu, is Lahaul's administrative centre — better hotels, ATMs, fuel, and the Shashur and Kardang gompas. Stock up here if you are continuing toward Leh or Spiti.
Keylong attractions
- Shashur Monastery — hilltop gompa with valley views
- Kardang Monastery — historic Buddhist site
- Keylong bazaar — supplies and souvenirs
- Tourist information and taxi stands
- Hotels and restaurants for overnight stays
- Fuel and mechanical help for highway travellers
3. Beas Kund — sacred glacial lake trek
High-altitude trek (from Manali side)
Beas Kund at ~4,219 m is a classic trek starting from Solang near Manali — often done before or after a Sissu stay. The glacial lake is considered the source of the Beas River and sits in alpine meadow country below peaks.
Trek details
- Base: Solang Nullah (Manali side, before tunnel)
- Distance: ~24 km round trip typical route
- Duration: 2–3 days
- Difficulty: moderate–challenging; high altitude
- Best season: June–September
- Guides and gear available in Manali / Solang
Altitude note: Acclimatize in Manali or Sissu before attempting Beas Kund if you are sensitive to height.
4. Atal Tunnel — engineering marvel
Asia's longest highway tunnel
The 9.02 km Atal Tunnel bypasses the old Rohtang Pass road in winter and cuts Manali–Lahaul travel time sharply. Driving through is part of the Sissu experience — well-lit, ventilated, and usually open year-round except extreme weather closures.
Tunnel journey highlights
- ~9 km single-tube highway tunnel
- Connects Manali (Kullu) to Lahaul in ~15–20 minutes
- Toll payable at the south portal
- Occasional closures in avalanches or maintenance — check ahead
- Viewpoints and parking at tunnel mouths
- Made Sissu viable as a winter weekend destination from Manali
5. Tandi — river confluence
Where Bhaga and Chandra meet
Tandi, roughly 15 km toward Keylong from Sissu, is where the Bhaga and Chandra rivers join to form the Chenab (Chandrabhaga). The confluence, monastery above, and highway bridge make it a standard photo stop.
Tandi attractions
- Dramatic confluence of two mountain rivers
- Tandi Gompa overlooking the junction
- Strong landscape photography
- Short drive from Sissu as a half-day outing
- Basic food and fuel nearby
- Key stop on Manali–Leh Highway
6. Sarchu — Manali–Leh midway
Highway stopover in barren country
Sarchu (~120 km beyond Sissu toward Leh) is a tented camp and dhaba cluster at ~4,290 m — classic overnight halt for bikers and drivers crossing to Ladakh in summer.
Sarchu highlights
- Midway point on Manali–Leh route
- Tented accommodation and highway dhabas
- Stark trans-Himalayan desert scenery
- Base for high-pass crossings (Baralacha La, etc.)
- Popular with motorcycle expeditions
- Only practical June–September for most travellers
7. Rohtang Pass — high mountain gateway
Iconic pass on the Manali side
Rohtang La (~3,978 m) sits above Manali on the old road — still reachable from Manali for snow play and views when permit and weather allow, even though Lahaul access now mainly uses the tunnel.
Rohtang highlights
- Panoramic Kullu Valley and peak views
- Snow activities in winter (permits required)
- Photography and short treks from pass area
- Weather changes quickly — dress in layers
- Separate from tunnel route but part of Manali–Sissu trip planning
Season note: Rohtang access is permit-controlled; snow conditions differ from Sissu side of tunnel.
8. Manali–Leh Highway via Sissu
Legendary mountain road
Sissu lies on one of the world's great high-altitude highways — continuing north crosses passes above 4,000–5,000 m toward Leh. Treat it as a serious mountain drive: fuel, altitude meds, and buffer days.
Highway highlights
- Manali to Leh ~470 km via Lahaul
- Multiple high passes (Baralacha La, Naki La, Lachulung La, etc.)
- Desert mountains, wide valleys, sparse traffic off peak
- Best window: June–September
- Fuel up at Keylong and Tandi; carry spare if biking
9. Spiti Valley — desert valley extension
Multi-day journey from Lahaul
Spiti (Kaza, Key, Tabo, Dhankar) branches from the Lahaul–Spiti road network — a different landscape of barren peaks and ancient gompas, typically 2–3 days from Sissu with acclimatization.
Spiti highlights (from Lahaul side)
- Kaza — Spiti headquarters
- Key Monastery — cliff-edge gompa
- Tabo — thousand-year-old monastery
- Dhankar — fort and gompa above confluence
- High villages: Kibber, Langza, Hikkim
- ~250–300 km from Sissu depending on route — plan multiple stops
10. Sissu weather and seasonal activities
High-altitude climate
At 3,250 m, Sissu is cold and dry. Winters bring snow; summers are the main travel season; spring and autumn are shoulder windows with fewer crowds and sharp clear light.
Sissu weather by season
December–February (winter — snow)
- Temperature: -5°C to 5°C
- Snow: Common; village and waterfall often white
- Is there snow in Sissu now? Usually yes in Jan–Feb
- Roads: Tunnel generally open; side roads icy
- Activities: Snow photography, short walks, café stops
- Packing: Full winter kit mandatory
March–May (spring)
- Temperature: 0°C to 10°C
- Snow: Melting; unpredictable storms
- Activities: Early-season drives, limited trekking
- Best for: Budget travel, fewer tourists
June–September (summer — ideal)
- Temperature: 10°C to 20°C
- Snow: Clear at village level; peaks stay white
- Weather: Most stable season
- Activities: All sightseeing, Leh/Spiti extensions
- Crowds: Peak — book stays early
- Best for: Families, bikers, first-time Lahaul visitors
October–November (autumn)
- Temperature: 5°C to 15°C
- Weather: Clear skies; excellent photos
- Snow: Possible late November
- Best for: Photographers; quieter highway
Weather reference
| Season | Months | Temperature | Snow | Road status | Best for |
|---|---|---|---|---|---|
| Winter | Dec–Feb | -5–5°C | Heavy | Tunnel usually open | Snow seekers |
| Spring | Mar–May | 0–10°C | Melting | Improving | Early season |
| Summer | Jun–Sep | 10–20°C | Valley clear | Fully open | All visitors |
| Autumn | Oct–Nov | 5–15°C | Late Nov possible | Clear | Photography |
How to reach Sissu from Delhi
By road (most common)
- Distance: ~540 km total
- Time: 12–14 hours non-stop; 2-day trip recommended
- Route: Delhi → Chandigarh → Manali → Atal Tunnel → Sissu
- Vehicle: Any car; winter may need chains on side roads
- Tolls: NH tolls plus Atal Tunnel fee
Suggested 2-day journey
- Day 1: Delhi to Manali (overnight in Manali — acclimatize at 2,050 m)
- Day 2: Manali → Atal Tunnel → Sissu (2–3 hours); explore waterfall and village
What to pack for Sissu
Year-round essentials
- Valid ID; inner-line not required for Indian citizens on this route
- Travel insurance with altitude coverage
- Altitude medication if prescribed
- SPF 50+ sunscreen and lip balm
- Trekking shoes or sturdy walking shoes
- Water bottle; hydration critical at 3,250 m
- Power bank; camera
By season
- Summer: Layers, rain jacket, hat, sunglasses
- Winter: Thermals, heavy coat, gloves, beanie, snow boots
- Spring / autumn: Sweater, windbreaker, scarf
Important information before you visit
Road access
- Check Atal Tunnel and Lahaul road status before leaving Manali
- Winter: carry chains; drive in daylight on icy sections
- Keep fuel topped up — sparse pumps beyond Tandi/Keylong
Altitude and health
- Sissu at 3,250 m — headache and nausea possible on arrival
- Spend a night in Manali first if coming from plains
- Drink plenty of water; avoid alcohol on day one
- Consult a doctor if you have heart or lung conditions
Stays and facilities
- Homestays, camps, and guesthouses along highway — book peak summer early
- Mobile data works intermittently; Wi-Fi limited
- ATM mainly in Keylong — carry cash to Sissu
Plan your Sissu Lahaul trip
Sissu is the easy Lahaul introduction — one tunnel from Manali, waterfall views, and the whole Manali–Leh corridor ahead. Summer for the full highway; winter for snow without crossing Rohtang Pass.
Overnight in Manali, check tunnel status, acclimatize, then take the short hop to Sissu for your first night above 3,000 metres.
Conclusion
Sissu has become Lahaul's front door since Atal Tunnel opened — a high village with a famous waterfall, quiet homestays, and access to Keylong, Tandi, and the road to Leh. It answers "where to go beyond Manali" without committing to the full Ladakh drive.
Watch the weather: snow in winter is real and beautiful; summer is when the highway hums with bikers and families. Either way, respect the altitude — 3,250 metres is no joke after a same-day climb from Delhi.
Plan Manali + Sissu as a minimum long weekend, or string it into Keylong and beyond if you have the days. The tunnel made Lahaul reachable; Sissu is where you first feel you have crossed into another Himalaya.