Zao Onsen saw 120cm of snow across the 2025/26 season, down 21% on last winter. That puts it 14th snowiest of the last 15 winters.
0
powder daysmornings over 15cm, worth setting an alarm for.
10cm
biggest single daythe mountain reset overnight on 3 Mar 2026.
63cm
deepest basemeasured on 2 Feb 2026.
49cm
snowiest monthJanuary 2026 stole the show.
18cm
best weekseven days from 30 Dec 2025.
74%
of a typical winter's snowfall. A leaner year than usual.
Snow reliability
25/100
MarginalTypically about 85 ski days a season, declining by 4 days per decade.
Snowfall by season
The 14th snowiest of the last 15 winters.
Snowfall by month
January was the mid-winter peak, with 41% 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.