No snow yet. Snow depth and the seven-day outlook appear once snow is on the ground or forecast.
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 →
We do not show a snow depth here. The weather model we use reports snow lying on the ground — it knows nothing about grooming or snowmaking, and it is not the base depth a ski area publishes. In Japan we can check our figures against 234 weather stations. Outside Japan there is nothing to check them against, so we do not print a number we have not verified. Snow report on the official site ↗
Station du Mont Serein, in France, runs from 1,388 m at the base to 1,809 m at the top. Its mapped area is about 1.9 km across, with 31 marked runs and 8 lifts (about 11 km of piste in all).
Over the last twelve winters the ERA5 weather model gives it 32 cm of snowfall a season, 2,909th (tied) of 3,069 worldwide and 244th in France. It swings a lot from year to year: the biggest winter, 2017/18 (64 cm), brought more than 10 times as much as the leanest, 2015/16 (6 cm). December brings as much snow as January here (8 and 8 cm on average).
Modelled from weather data the same way at all 3,069 ski areas we cover. These are not the resort’s own published figures.
Counted from the runs and lifts drawn on OpenStreetMap, within the boundary of the ski area. These are not the resort’s own published figures.
81% of the vertical on the runs descends to the north or east. Those slopes get the least sun, so the snow lasts longer.
See past trail maps on Skimap.org ↗
Source: OpenSkiMap (© OpenStreetMap contributors, ODbL 1.0). How finely ski areas are drawn varies by region, so treat the counts as indicative. Vertical is the difference between the highest and lowest points of the mapped runs and lifts.
The most snow falls in December. March brings as much as January, or more. In amount, March brings 8 cm, less than the median of 55 cm.
Across the 12 winters measured, the average is 32 cm, and 8 of them fell short of it. The leanest was 2015/16 with 6 cm; the biggest was 2017/18 with 64 cm (10.7 times as much). For 26% of the 244 ski areas in France the leanest winter was 2016/17; here it was a different one.
Snowfall each winter (December–March total). The dashed line is the average; the numbers mark the leanest and the biggest winter.
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Other booking sites: Booking.com ↗ · Agoda ↗
Japan vs elsewhere · 28 Aug 2026
A Black Run in Colorado and a Black Run in Austria Are Not the Same Thing. The Maps Prove It.Across 2,888 ski areas: 39% of American runs are graded advanced or harder, and 9% of Austrian ones. Nobody thinks Austria is four times gentler. The grades are measuring different things.
Japan vs elsewhere · 28 Aug 2026
How Big Are Japan's Ski Areas? Smaller Than the Alps, Snowier per Kilometre