Grandeco opens for pre-season on Saturday, 21 November 2026. Pre-season runs until 11 December. The main season runs from 12 December 2026 to 22 March 2027, and the spring season until Sunday, 11 April 2027.
The resort says the schedule may change with snow conditions. It has not said which courses open in pre-season, so for a full-resort day, plan for mid-December or later.
Most resorts near Tokyo announce their dates between September and November. We track every confirmed 2026-2027 date, and explain how season timing works, in one place: When Do Honshu Ski Resorts Open?
Planning your trip? See the full Japan ski trip planning timeline.
Source: Grandeco official website. Translated and summarised by Japow Guides.
