How to climb the Weissmies – the perfect first 4,000m peak

British Mountain Guide Tom Ripley talks us through the climb.

The Weissmies is my favourite of the easier 4,000-metre peaks. The mountains above Saas-Fee and Saas-Grund offer a rewarding combination of accessibility, scenery and classic alpine mountaineering. Rising to 4,017 metres, it is one of the finest introductory 4,000-metre summits and should be high on the wish list of any aspiring alpinist. However, it should never be underestimated, and success depends on careful planning, prior acclimatisation and favourable weather.

Standing on the summit offers one of the finest viewpoints in Switzerland. To the south, the jagged skyline of the Italian Alps stretches into the distance. To the west stand the imposing summits of the Mischabel range, including the Dom, the highest mountain entirely within Switzerland. On a clear morning, the horizon seems endless.

Despite its relatively modest technical difficulty, the Weissmies feels every bit a major alpine peak. A pre-dawn start beneath a starry sky, watching the alpenglow illuminate the surrounding mountains, and climbing the final snow ridge towards the summit combine to create an experience that leaves a lasting impression.

The Classic Route

Whilst it is possible and popular to climb the Weissmies via the Trift Glacier from the Hohsaas cable car, I would not recommend this ascent. It is a long glacial slog, with seracs threatening a substantial portion of the route. The best and most popular ascent follows the South-East Ridge from the Almageller Hut. This route features an enjoyable rocky ridge that provides just enough exposure to remind climbers they are in serious mountain terrain.

The climb typically begins with an alpine start. After forcing down breakfast, you'll need your headtorch to find your way to the Zwischbergen Pass. I'd aim to reach it around sunrise. Turn left and follow the beautiful rocky ridge—think Striding Edge on steroids. Higher up, the scrambling steepens and a short pitched section may be necessary. The climbing is never particularly difficult, but the exposure and altitude ensure that concentration remains high throughout.

The final ridge is the highlight of the day. Often no more than a few metres wide, it sweeps elegantly towards the summit, with impressive drops on either side. In good conditions, it provides one of the most memorable snow arêtes in the Alps.

From the summit, the sense of achievement is immense. For many, it marks their first time standing above 4,000 metres.

Whilst it is tempting to descend the glacier to the Hohsaas lift, I would recommend retracing your steps to the Almageller Hut. Either stay for another night or, after a well-earned cold drink, hot-foot it back to the valley.

Other Routes

The North Ridge (AD+) and its many gendarmes make for a fine expedition for the experienced alpinist. The Rotgrat (PD+), also from the Almageller Hut, is a touch harder than the South-East Ridge. The traverse of the Dri Horlini is a brilliant, short, rocky outing that can be climbed in half a day from the hut—perfect if you arrive with energy to burn. Alternatively, the Portjengrat Traverse is a longer Alpine classic (AD) that can also be completed from the Almageller Hut.

Skills Needed

The Weissmies is frequently marketed as an ideal beginner's peak, but that description can sometimes be misleading. While the technical climbing is relatively straightforward, the Weissmies, like all alpine mountains, demands a solid level of fitness, efficient movement skills and a basic understanding of alpine ropework.

Altitude affects everyone differently, and whilst it is possible to climb to 4,000 metres completely unacclimatised, it won't be much fun, and I certainly wouldn't recommend it. Even exceptionally fit climbers can experience headaches, fatigue or nausea if they ascend too quickly. Spending time acclimatising beforehand dramatically increases both safety and enjoyment. An ascent of the Allalinhorn as a day trip from Mittelallalin is an excellent option for prior acclimatisation.

Why Climb with a Guide?

Although experienced mountaineers frequently climb the Weissmies independently, it remains one of the most popular guided ascents in Switzerland, and an ascent is often the culmination of a week-long introductory alpine course.

If you would like to hire a guide, the "Hire a Guide" section of the British Mountain Guides website is an excellent place to start.

Preparing for Success

Preparation begins long before arriving in the Alps.

A good level of cardiovascular fitness is essential. Hill walking, trail running, cycling and long mountain days all provide excellent preparation. Endurance is far more valuable than outright speed.

Equipment should also be carefully considered. Remember: light is right, and the lightest piece of gear is the one you left behind. You'll need mountaineering boots compatible with crampons—although I prefer to walk in and out wearing comfortable trail running shoes - along with clothing that performs well in both heat and cold, lightweight waterproofs, a warm insulated jacket, glacier sunglasses and a small rucksack.

Technical equipment should include a climbing harness, helmet, 40-metre single rope, ice axe, crampons, gloves, headtorch, and a small selection of slings and karabiners. Remember that conditions can vary dramatically between the valley and the summit, with temperatures often remaining below freezing even in midsummer.

Equally important is maintaining realistic expectations. Mountains are shaped by weather rather than schedules, and sometimes the wisest decision is to descend without reaching the summit.

An Unforgettable Introduction to the Alps

The Weissmies has earned its reputation as one of Europe's classic mountaineering objectives.

It provides an achievable yet meaningful challenge, introducing climbers to altitude and alpine ridges without demanding advanced technical climbing skills. Every stage of the ascent, from the alpine start to the elegant summit ridge, captures the essence of alpine mountaineering.

Perhaps most importantly, the Weissmies often becomes the beginning rather than the end of a mountaineering journey. Standing on its snowy summit, surrounded by countless neighbouring peaks, it is difficult not to begin planning the next adventure.

For many climbers, that first 4,000-metre summit opens the door to a lifetime of exploration in the high mountains. Few places provide a better introduction than the Weissmies.

About the author

Tom Ripley is a British Mountain Guide based between the Alps and the Lake District. His favourite climbs are ones spent in good company, which are almost too hard and in a beautiful place. Follow him on Instagram: @tomripleyguiding