Hoshino Tomamu saw 263cm of snow across the 2025/26 season, up 9% on last winter, with 1 more powder day than last year. That puts it sixth snowiest of the last 15 winters.
1
powder daymornings over 15cm, worth setting an alarm for.
25cm
biggest single daythe mountain reset overnight on 14 Dec 2025.
97cm
deepest basemeasured on 10 Mar 2026.
82cm
snowiest monthDecember 2025 stole the show.
46cm
best weekseven days from 8 Dec 2025.
104%
of a typical winter's snowfall. Right about average.
Snow reliability
89/100
ExcellentTypically about 134 ski days a season, declining by 24 days per decade.
Snowfall by season
The sixth snowiest of the last 15 winters.
Snowfall by month
December was an early-season standout, with 31% of the season's snow.
Modelled base-altitude snowfall from ERA5 reanalysis (Copernicus), EM Snow archive. The grid sits near resort base, not the summit, so treat totals as a valley-level estimate.