UTMB Chamonix Guide | 2026 Dates, Accommodation & 2027 Information
For one extraordinary week each summer, Chamonix becomes the centre of the trail running world.
From the moment runners begin arriving, the atmosphere in the valley starts to change. Cafés fill with athletes discussing race plans over coffee, supporters gather from every corner of the globe, and the streets buzz with anticipation as some of the world's most challenging trail races prepare to begin.
Whether you're taking part, supporting family or friends, or simply want to experience the incredible atmosphere, UTMB week is unlike any other time of year in Chamonix.
If it's your first visit, here's everything you need to know.
UTMB Mont-Blanc 2026 Dates
The HOKA UTMB Mont-Blanc 2026 takes place from Monday 24th August to Sunday 30th August 2026, bringing together thousands of runners, supporters and spectators from around the world.
Throughout the week, Chamonix hosts a programme of races, events and celebrations, with the town centre becoming the heart of the action.
For the latest race information, course details and official announcements, visit the official UTMB Mont-Blanc website.
When is UTMB Chamonix 2027?
At the time of writing, the official dates for UTMB Mont-Blanc 2027 have not yet been announced.
Based on previous editions, the event is expected to return during the final week of August, but we'll update this guide as soon as the organisers confirm the dates.
If you're hoping to visit Chamonix for UTMB 2027, our advice is simple: start planning early.
Accommodation fills quickly, particularly close to the town centre, and many runners and support crews book their favourite apartments and chalets many months in advance.
Search your accommodation for UTMB 2027 here once dates are known for the 2027 UTMB in Chamonix.
More Than Just a Race
Even if you're not lacing up your running shoes, UTMB is an incredible event to experience.
The atmosphere is infectious. Throughout the week you'll see elite athletes warming up alongside first-time competitors, families cheering from cafés, children ringing cowbells and spectators lining the streets late into the evening.
There's something incredibly special about watching runners cross the finish line after completing one of the world's toughest endurance races. Whether they've taken just over 20 hours or almost two full days, every finisher receives the same unforgettable welcome.
It's one of those moments that stays with you long after you've returned home.
Where Should You Stay During UTMB?
One of the questions we're asked most often is where to stay during UTMB Chamonix race week.
The answer really depends on the experience you're looking for.
Chamonix Centre places you in the middle of the excitement, within walking distance of the finish line, race village, restaurants and shops.
Les Houches offers a quieter base just a short drive or bus ride away. It's ideal for families, supporters and anyone looking to enjoy the atmosphere while escaping the busiest parts of town at the end of the day.
Argentière is perfect for visitors wanting spectacular scenery and easy access to the northern end of the valley, while Saint-Gervais provides a more relaxed setting with excellent transport links into Chamonix.
Whichever village you choose, you'll never be far from the action.
Booking Accommodation for UTMB
UTMB is one of the busiest weeks of the year in the Chamonix Valley.
Apartments and chalets are often reserved many months in advance, particularly larger properties for teams and support crews travelling together.
If you're already thinking about
UTMB 2027, it's worth registering your interest early.
Get in touch with us and we'll be happy to let you know as suitable properties become available.
Our Local Tips for UTMB Week
After more than 20 years welcoming guests to the valley, Chamonix Holidays havee picked up a few tips that can make your stay even more enjoyable.
Use the valley buses and trains whenever possible. Traffic is noticeably busier throughout race week, while public transport makes getting around surprisingly easy.
Book restaurants in advance. Chamonix is buzzing during UTMB, and popular restaurants fill quickly in the evenings.
Allow extra time. Whether you're collecting race packs, meeting runners or travelling across the valley, everything takes a little longer during such a busy week.
Explore beyond Chamonix. If you're staying for several days, spend time discovering Les Houches, Argentière or Saint-Gervais. Each has its own character and offers a welcome contrast to the excitement in the town centre.
Planning Your UTMB Stay
Whether you're running, supporting friends and family, or simply want to experience one of the world's most iconic trail running events, we'd love to help you find the perfect place to stay.
Chamonix Holidays has been welcoming guests to the Mont Blanc region for over 20 years, with a carefully selected collection of apartments and chalets across Chamonix, Les Houches, Argentière and Saint-Gervais.
Wherever you choose to stay, you'll be perfectly placed to enjoy an unforgettable week in the mountains.
Frequently Asked Questions about the UTMB Chamonix
When is UTMB 2026?
The HOKA UTMB Mont-Blanc takes place from 24th to 30th August 2026.
When is UTMB 2027?
The official dates have not yet been announced. We'll update this guide as soon as they're confirmed by the organisers.
Is Chamonix busy during UTMB?
Yes. UTMB is one of the busiest weeks of the year, attracting runners, supporters and spectators from around the world.
Accommodation in Chamonix, restaurants and popular attractions can all be much busier than usual.
When should I book accommodation?
As early as possible. Many guests reserve their accommodation several months in advance, particularly if they're travelling as part of a group or support crew.
Is UTMB worth visiting if I'm not racing?
Absolutely. The atmosphere throughout the valley is incredible, with races taking place throughout the week, plenty of opportunities to support runners, and a unique sense of community that makes UTMB special even for spectators.
