Grandval
Grandval is a ski area in Switzerland. It sits at about 1,119 m above sea level. The mapped ski area is about 1.9 km across, corner to corner. Within 2.5 km of the centre, the map shows 5 marked runs and 1 lift, totalling about 5.1 km of piste. Averaged over the last twelve winters, the ERA5 reanalysis gives it 83 cm of snowfall a season, 2549th (tied) of the 3,069 ski areas we measure worldwide. The model runs well below what resorts report, so the ranking is the meaningful part rather than the centimetre figure. 199 other ski areas lie within 120 km. Snow figures and the Powder Score are recalculated every day.
Elevation of the ski area’s centre point, taken from a digital elevation model. It is not the base-to-summit range.
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.
Score breakdown
Powder Score v1.0.0
7-day outlook
| Date | Snow | Temp | Wind |
|---|---|---|---|
| 🌧️ 7 Oct | 0 | 11.5 / 18.5 | 22.1 |
| ⛈️ 8 Oct | 0 | 4 / 12.3 | 22.9 |
| 🌧️ 9 Oct | 0 | 1.5 / 8.3 | 9 |
| 🌧️ 10 Oct | 0 | 6.9 / 11.7 | 20.6 |
| ☁️ 11 Oct | 0 | 3.8 / 11.5 | 12.8 |
| 🌤️ 12 Oct | 0 | 2.5 / 11.8 | 11.4 |
| ☁️ 13 Oct | 0 | 3.1 / 16.9 | 6.3 |
Runs and lifts
Counted from the marked runs and lifts on the map, within 2.5 km of the centre of the ski area. These are not the resort’s own published figures.
By difficulty
Lift types
- T-bar1
Source: OpenStreetMap (ODbL 1.0). How finely ski areas are drawn varies by region, so treat the counts as indicative. Difficulty uses the European grades, which do not map onto North American green / blue / black.
How much snow it gets
Measured by us across 3,069 ski areas by one identical method. These are not the resort’s own published figures.
Compared with what is nearby
Within 50 km straight line. Measured the same way, so the ranks compare directly. Ski areas a few kilometres apart share a weather grid cell and can return the same figure.
| Ski area | Distance | Seasonal snowfall | World rank |
|---|---|---|---|
| Grenchenberg | 5.2 km | 83 cm | 2549 |
| Röti | 8.4 km | 75 cm | 2625 |
| Malleray - Les Orvalles | 12 km | 109 cm | 2250 |
| Hohe Winde – Beinwil | 16 km | 76 cm | 2621 |
| La Golatte | 16 km | 109 cm | 2250 |
When it falls, and how winters differ
Month by month
Month by month, the most snow falls in January. March brings 46% of January’s snowfall. That is a steeper fall than the median for ski areas in Switzerland (76%): the snow here is concentrated early in the season. In amount, March brings 13 cm, less than the median of 60 cm.
Winter by winter
Across the 12 winters measured, the average is 83 cm, and 7 of them fell short of it. The leanest was 2024/25 with 46 cm; the biggest was 2020/21 with 153 cm (3.3 times as much).
Snowfall each winter (December–March total). The dashed line is the average; the numbers mark the leanest and the biggest winter.
Map
Where it sits relative to nearby resorts. For a piste map, see the official site.
More places to look
Guides covering Switzerland
- Everywhere on Earth You Climb for Snow. Japan Is the One Place You Drive Toward the Sea. Across 3,069 ski areas we measure, height and snowfall move together — +0.58 in France, +0.85 in Germany. In Japan the figure is +0.02. The reason is not that elevation stopped working.
- 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.
- You Book Six Months Ahead. Italy's Snow Swings Twice as Wide as Japan's. Over twelve winters, the typical Japanese ski area's best winter was 2.3 times its worst. In Italy it was 4.6 times, in New Zealand 6. Canada, Finland and Sweden come out steadier than Japan.
Updated: 7 Oct 2026, 00:32