Jost Kobusch Will Attempt a Solo Oxygen-Free Winter Climb of Everest’s West Ridge

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Jost Kobusch walking out of a room in Kathmandu, Nepal

Jost Kobusch plans to climb Everest’s West Ridge alone and without bottled oxygen at the end of December. The route has no winter summit on record.

Jost Kobusch, a German alpinist who is attempting to climb Mount Everest completely solo, in winter, and without supplemental oxygen via the difficult West Ridge route, uses his laptop in Kathmandu
On his laptop in Kathmandu, Nepal, solo Everest hopeful Jost Kobusch prepares for his winter West Ridge attempt, November 3, 2026. Photo by Navesh Chitrakar / REUTERS.

The 34-year-old German climber is leaving this week and will train on smaller peaks before attempting the 8,849-metre (29,032-foot) mountain. His solo plan means he’ll have no guide support above base camp.

Jost Kobusch, a German alpinist who is attempting to climb Mount Everest completely solo, in winter, and without supplemental oxygen via the difficult West Ridge route, uses his laptop in Kathmandu
German alpinist Jost Kobusch poses for a portrait in Kathmandu, Nepal, on November 3, 2026, ahead of his solo winter attempt on Everest’s West Ridge. Photo by Navesh Chitrakar / REUTERS.

Winter offers the solitude Kobusch wants on a mountain that more than 10,000 people have climbed since Edmund Hillary and Tenzing Norgay reached the summit in 1953. Official data records just 14 winter summiteers, all on other routes, during the December-February season.

Jost Kobusch, a German alpinist who is attempting to climb Mount Everest completely solo, in winter, and without supplemental oxygen via the difficult West Ridge route, uses his laptop in Kathmandu
German alpinist Jost Kobusch during an interview in Kathmandu, Nepal, on November 3, 2026, ahead of his solo winter attempt on Everest’s West Ridge. Photo by Navesh Chitrakar / REUTERS.

“West Ridge is more beautiful, and as an alpinist I am looking for this beauty,” Kobusch said in Kathmandu. “I am looking for the wilderness.”

Jost Kobusch, German mountaineer, preparing for a solo winter climb of Everest
German alpinist Jost Kobusch prepares for his solo winter attempt on Everest’s West Ridge without bottled oxygen. Photo by Navesh Chitrakar / Reuters.

Kobusch, who’s from Borgholzhausen, attempted Everest in 2019, 2021 and 2024. Strong winds kept him from getting higher than 7,540 metres (24,737 feet).

Above 8,000 metres (26,246 feet), the thin air gives Everest’s “death zone” its name. Temperatures there can fall to minus 40 degrees Celsius (minus 40 degrees Fahrenheit) or below. Winter adds powerful winds and fewer daylight hours to the climb’s hazards.

In 2020, heavy snow forced 4 Sherpa climbers to abandon their own winter attempt on the West Ridge.

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