Gassan Ski Resort is a ski area in Yamagata with 1 webcam, 4 runs, 1 lift and 500 m vertical.
Gassan is Japan's only summer ski resort, open from April to July. 1 webcam, 4 runs, 1 lift and 500 m vertical.
2026-27 season: opening date not announced yet (checked October 27). Heavy snow blocks access in winter, so Gassan opens in spring and runs into summer. The 2025 season opened on April 11, 2025. The pair lift ended its 2026 season in October; no 2027 date yet.
Cameras are expected to come back online when the season starts (date not announced). Some cameras stream all year: press play to try one.
The longest run is about 3 km. An adult day ticket is around ¥5,800 (check the resort for current prices).
Still images from the resort's cameras show the slopes. Snow depth and the 7-day snowfall and temperature forecast for Gassan Ski Resort come from Open-Meteo forecast models for its part of Yamagata.
Best for: Powder, Advanced Terrain, Less Crowded
Gassan is Japan's only summer ski resort, opening from April to July when other resorts close. The resort is buried under so much snow in winter that it cannot operate until spring, making it famous for spring and summer skiing.
Gassan's ski season runs from early April to late July, the latest closing date of any ski resort in Japan. Peak conditions are typically May and June when the snow is still abundant and the weather is pleasant.
Yes, Gassan is the premier destination for summer skiing in Japan. While the snow softens in the afternoon, morning conditions can be excellent. The resort attracts ski clubs and racers for off-season training.
Gassan is in Yamagata Prefecture, about 4 hours from Tokyo. Take the Yamagata Shinkansen to Yamagata Station, then a bus to Gassan (about 2 hours). The mountain road opens in April after snow clearing.
Gassan has unique spring conditions with corn snow that softens through the day. The base is T-bar and rope tow only (no chairlifts), and the terrain is mostly moguls and natural features. Bring sunscreen!