Location
2024年2月1日
Climbing Mt. Fuji Off-Season
Due to high risk of injury, fatality, and the need for emergency rescue, the International Affairs Desk at Fujiyoshida City Hall highly discourages off-season climbing.

Official climbing season is July and August every year.

High Risk of Injury and Fatality

Rescues and fatalities happen every year among experienced climbers. According to Yamanashi Prefecture Police, since 2016 there have been six reported fatalities (due to slipping and falling) and 12 reported incidences of rescue on off-season winter Fuji.

Climbing Plan Submission

The International Affairs Desk highly discourages off-season climbing.
Prospective climbers should be experienced winter alpinists with the appropriate equipment to safely complete the ascent.

Climbers who intend to climb despite the risks must file a Mountain Climbing Plan with the Yamanashi Prefecture Police Department.

Scroll down to "Climbing Plan Style English (ClimbingPlan) (Excel: 24KB)" or download directly from this link. They have also posted an example of how to fill out the form. (example is only in Japanese, but the form may be filed in Engilsh)

This paperwork must be downloaded, filled out in its entirety and submitted to the Police Department directly via email attachment (tozanpost@pref.yamanashi.lg.jp) or fax. Climbers will not receive a notice that the form was received.

Unique Risks of Climbing Mt. Fuji Off-Season

Even very experienced climbers underestimate the severity of off-season climbing conditions on Mount Fuji. In addition to the dangers of any winter mountain, such as avalanches, falling rocks, low temperatures, and whiteouts, Mt. Fuji has its own unique set of dangers due to it's shape and location:

Wind  Unlike most mountains, Mount Fuji is a standalone peak with no surrounding barriers to break the wind. Momentary wind gusts are so strong that they can lift climbers off the slope and hurtle them down the mountain. 
Completely Frozen Slopes On many winter mountains, the blades of crampons and ice axes bite the snow well, but on the hard frozen ice of Mt. Fuji, these can be completely ineffective.
No Protection from Slips or Falls Once a slip or fall happens, due either to wind or failing ice axes and crampons, it is very difficult to stop. The slopes of Mt. Fuji in winter are like an angled skating rink with no breaks or ledges, and unfortunate climbers will quickly accelerate to lethal speeds.


In addition, the following services are unavailable on Mount Fuji during the winter off-season:

Rescue Personnel Mountain Huts Facilities Transportation

Read article "Why Mt. Fuji in Winter is Dangerous even for Advanced Mountain Climbers"

Account of a Professional Climber

Here are some important exerpts from Climbing Mt. Fuji in Winter, Midwinter Period

"Moreover, near the top of the mountain, the slope is about 45 degrees and the ice is covered with ice, so even if you take a wind-resistant position, your body may be carried away by the gusts of wind."

"Above all, in winter at Mt.Fuji, the ice patches are terrible and the wind is strong . The annual average wind speed is about 10 m/s. And since the atmospheric pressure at Winter Fuji is about 20 hpa lower, even though the altitude is 3776 m, it actually becomes an altitude of 4000 m."

"The ice is so frozen that the crampon blade can't penetrate it at all . Then, I feel like I'm about to be blown away by the wind and I want to take a wind-resistant position, but if I do that, I'm going to slip and fall, so there's no way I can take a wind-resistant position."

"This is why I said that climbing Mt. Fuji during the harsh winter season is more technically difficult than climbing the highest peaks on the seven continents (McKinley, Kilimanjaro, etc.) when the summer climate is stable."

Inquiries about contents
Fujiyoshida Office of International Affairs
〒:403-8601
Address:6-1-1 Shimoyoshida Fujiyoshida-shi Ymanashi
TEL:0555-24-1236
FAX:0555-22-0703
E-Mail:Click here.