Mont Blanc 2026: Trois Monts Traverse, September 9–15

Mont Blanc is the highest peak in Western Europe (4810 m). And if you're reading this, you've likely already thought about climbing it. September is the perfect time: the summer stagnation has already set in, and the crowds of tourists have retreated from the classic route. In 2026, PVD Club has planned an ascent for September 9–15 along the most beautiful route, the Trois Monts (Three Summits). The ascent itinerary

Why Trois Monts and not the classics via Güte

The Trois Monts ("Three Mountains") route is a traverse of three four-thousanders in a single ascent: Mont Blanc du Tacul (4248 m), Mont Maudit (4465 m), and Mont Blanc proper (4810 m). Unlike the classic route via the Güte refuge, this route is less crowded, more adrenaline-fueled, and offers radically different views.

Yes, Trois Monts is technically more challenging (AD- versus PD+). It's not a walk. It requires confident use of crampons and an ice axe. But this route gives that feeling of "I've climbed the Alps," not just "I've climbed a mountain one by one."

Program September 9–15, 2026

Day 1 – September 9 (Wednesday): Arrival in Chamonix. Transfer from Geneva (1–1.5 hours). Accommodation, evening meeting with the guide, gear check. If you need anything, Chamonix has dozens of rental shops with high-quality mountaineering equipment.

Day 2 – September 10: Easy acclimatization. Trekking in the valley or climbing Brevent (2525 m). No rush – the goal is to let your body understand that we're in the mountains. In the evening, a briefing: crampons, ice axe, and roped climbing.

Day 3 – September 11: Acclimatization hike to 3500+ meters. Ascent to the Aiguille du Midi (3842 m), exit to the Vallée Blanche glacier. Altitude check: breathing, heart rate, general well-being. Evening descent to Chamonix.

Day 4 – September 12: Ascent to 4000+ meters. Climb the Aiguille du Tour (3542 m) or Pointes Lachenal. Climb high, sleep low – the gold standard of acclimatization.

Day 5 – September 13: A day of rest and preparation for the summit push. The guide checks the weather forecast. If the forecast is uncertain, we use the backup day.

Day 6 – September 14: Departure to the Cosmique Refuge (3613 m). Cable car to the Aiguille du Midi, descent along the famous ridge of the Arête des Cosmiques. Dinner and early bedtime at the hut. The altitude is already 3613 m – sleep will be difficult, but that's normal.

Day 7 – September 15 (assault day): Rise at 01:00 AM, light breakfast, departure at 02:00 AM. Traverse all three peaks. Final assault on Mont Blanc – summit reach around 09:00 AM. Descent via the Güter refuge or back via the Trois Monts (guide decides). Return to Chamonix by 15:00–16:00 PM.

After the descent - shower, dinner and the feeling that you did it.

What is included in the program

• Services of a certified mountain guide (UIMLA/IFMGA) for the entire route
• Transfer from Geneva Airport to Chamonix and back
• Hotel accommodation in Chamonix (6 nights)
• Overnight stay at the Kosmik shelter (1 night)
• Cable cars according to the program
• Group equipment: railings, radios, first aid kit, satellite tracker
• Insurance on the route
• Full briefing and preparation before the assault

Not included: airfare, personal equipment, equipment rental, meals (except for the shelter), additional expenses.

Requirements for participants

The Trois Monts route (category AD-) is for experienced participants. What you need:

• Confident experience of walking with crampons on snow slopes up to 45°
• Experience using an ice axe and self-belay on ice
• Good physical condition (12–16 hours of walking per day at an altitude of 3600–4800 m)
• Experience in high altitude climbing (4000+) is desirable.
• Your personal equipment (mountaineering boots B2/B3, crampons, ice axe, helmet, harness)

Weather on Mont Blanc in September

The first half of September is the best time for experienced climbers. There are almost no people, and the weather is still holding up after the stable August. Daytime temperatures at the summit range from -8 to -15°C, while in Chamonix they range from +20 to +25°C. Nighttime temperatures at the Cosmique refuge (3613 m) range from -2 to -5°C.

Important: After September 20th, good weather windows become less frequent, and fresh snow on the route increases the avalanche danger. Our dates (September 9th–15th) fall within the ideal window.

Route comparison

What to take with you

Equipment is key to success. Here's a minimal list:

• Boots: B2 or B3 mountaineering boots, broken in. No trekking boots—the soles need to be able to grip crampons on 50° ice.
• Clothing: Quick-drying thermal underwear, fleece, membrane jacket + pants, down jacket for the top
• Equipment: crampons (compatible with boots), ice axe, helmet, harness, carabiners, whiskers, jumar
• Backpack: 30–45 liters, light
• Other: Headlamp with spare batteries, sunglasses (cat. 4), SF50 sunscreen, thermos, first aid kit

A complete list of equipment will be sent after booking.

Why PVD Club?

PVD Club has been leading groups to Mont Blanc since 2021. We know the route, weather conditions, and acclimatization requirements. Our guides are certified specialists with experience climbing in the Alps, the Caucasus, and South America. We remain committed to our participants and will see them to the summit.

A group of up to 4 people per guide ensures that everyone receives sufficient attention.

How to sign up

Dates: September 9–15, 2026
Location: Chamonix, France – Alps
Start: transfer from Geneva
Price: Check in Telegram

For bookings and questions, write to Telegram @pvd_club

Places in the group: 4. September flies by quickly.