No snow on the ground or falling right now. The 2026/27 season is planned to open on 18 Dec (the resort’s announcement; it moves with the snow). Snow depth and the seven-day outlook appear once snow is on the ground or forecast.
Opens
18 Dec
Typical snowfall
252cm
A weather-model figure, worked out the same way for every ski area, and lower than what actually falls. Use it to compare ski areas, not against the resort’s own totals. How we measure →
Elevation
1,244–1,620 m
Across
2.5 km
This season so far (1 Nov to 9 Nov): 1 cm. The average for these dates is under 10 cm, so we do not give a percentage yet. The average is over twelve winters on the same weather model. Across Japan →
The R292 run follows National Route 292, closed to cars in winter. Linked from Aobayama via Onariyama down to Tenguyama, it makes one long descent. The Natsumichi run is named for the summer path that climbed from the hot-spring town to Mount Shirane before there were proper trails. The base is about five minutes by car from town. Sources: 932-onsen.com (sources read 13 Oct 2026; reviewed by the editor)
How much snow it gets
Modelled from weather data the same way at all 3,069 ski areas we cover. These are not the resort’s own published figures.
Seasonal snowfall
252cm
per season
Worst of 12 winters
186cm
The middle winter of the 12: 244 cm. The best: 337 cm.
World rank
712
of 3,069 worldwide
Rank in country
196
of 397 in Japan
Elevation rank
42
Highest to lowest, of 397 in Japan. The centre point sits at 1,452 m, 686 m above the national median.
Quality rank
85
of 397 in Japan
Temp when snowing
−6.3°C
Japanese median: −3.6°C
Rain days
9%
Japanese median: 16%
Days over 5 cm
14%
Japanese median: 15%
Wind when snowing
20km/h
Average daily peak, 10 m above ground across a model grid cell; not the wind on ridges or lift tops
Dryness59
Frequency39
Freedom from rain77
Calm when snowing (model grid)95
The tick marks the median across every Japanese ski area we measure. All four bars run the same way — longer is better.
The quality score leaves out how much snow falls (it uses temperature, frequency, rain and wind).
Compared with what is nearby
Within 50 km in a straight line. Ski areas in the same weather-model cell (about 30 km across) get the same figure.
The most snow falls in January. March brings 82% of January’s snowfall. That is a gentler fall than the median for ski areas in Japan (52%). In amount, March brings 61 cm, more than the median of 46 cm.
60cmDec
74cmJan
56cmFeb
61cmMar
Average snowfall by month, last 12 winters
Winter by winter
Across the 12 winters measured, the average is 252 cm, and 8 of them fell short of it. The leanest was 2025/26 with 186 cm; the biggest was 2014/15 with 337 cm (1.8 times as much). For 63% of the 397 ski areas in Japan the leanest winter was 2015/16; here it was a different one.
Total snowfall from December to March recorded at the 草津 weather station — 2.2 km from this ski area, 241 m below its mid-slope.
Three-season average
460 cm
2023/24
650 cm
2024/25
449 cm
2025/26
280 cm
The figure calculated on this page is 247 cm.
A weather station is not a ski slope. We picked one at a similar elevation, but it stands in a valley or a village. More snow falls on the mountain above it. We have not tried to guess how much more.
Source: Japan Meteorological Agency historical records
Hot springs nearby, as analysed
1 hot spring sources with published analyses lie within 5 km of this ski area, nearest first (the hottest is 95 °C).
Show the sources
Source
Distance
Temperature
pH
Type
草津万代鉱
1.1 km
95℃ hot
2 acidic
acidic
These are analyses of hot spring sources, not a list of baths you can visit. They date from 1910 to 2005, many from decades ago, so today’s temperature and chemistry may differ. Names are as recorded in Japanese. Temperature and pH bands follow Japan’s standard for analysing hot springs.
Source: processed from the hot spring analysis data in the Geothermal Information Database (GRES-DB), Geological Survey of Japan, AIST
Worth seeing nearby
Within 20 km in a straight line, nearest first. Some lie over a pass that is closed in winter.
Chosen from the places most read about on Wikipedia, favouring those with an English article. Based on the Japanese Wikipedia lists of sights in each prefecture, as compiled in travel-log-data (CC BY-SA 4.0). English names from Wikidata (CC0). The content of this section is available under CC BY-SA 4.0.
Map
The weather map, and where it sits among nearby ski areas.
Pick dates and guests to check rooms on Rakuten Travel
Prices are the lowest Rakuten Travel lists; a property name, or “Pick dates and guests” above, shows prices and rooms for your dates.
Contains advertising. Property names and Rakuten Travel’s booking pages are in Japanese. · Property data by Rakuten Travel (Supported by Rakuten Developers)
Places to stay on the map
62 places within 12 km of the slopes, as mapped on OpenStreetMap, many of them small inns and pensions. Many are not on booking sites — open the name for the website or the map.
Day trips from Tokyo, compared: Karuizawa (an hour by Shinkansen) averages 9 cm of December snow on our model, GALA Yuzawa (75 minutes) 170 cm. Fifteen ski areas, with 2026/27 opening dates and day-ticket prices.