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 →
Snow 24h
0 cm
Next 24h
0 cm
Temperature
3°C
Max wind
8 km/h
Elevation
1,221–2,221 m
Across
12 km
Updated: 10 Nov 2026, 12:15
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 ↗
7-day outlook
Date
Weather
Snow (cm)
Low / high (°C)
Wind (km/h)
Tue 10 Nov
Snow
0
1 to 5
8
Wed 11 Nov
Showers
0
2 to 5
8
Thu 12 Nov
Rain
0
2 to 6
7
Fri 13 Nov
Rain
0
0 to 5
8
Sat 14 Nov
Partly cloudy
0
−3 to 1
6
Sun 15 Nov
Fog
0
−4 to 3
5
Mon 16 Nov
Snow
1
−1 to 2
12
Score breakdown
Fresh (48h)0/40
Forecast (24h)0/25
Snow quality0/20
Wind10/10
Base2/5
The five add up to the 100-point Powder Score: more fresh snow, more on the way and colder air all push it up. How we measure
Seiser Alm - Mont de Sëuc - Alpe di Siusi, in Italy, runs from 1,221 m at the base to 2,221 m at the top. Its mapped area is about 12 km across, with 90 marked runs and 27 lifts (about 60 km of piste in all).
Over the last twelve winters the ERA5 weather model gives it 135 cm of snowfall a season, 1,877th (tied) of 3,069 worldwide and 133rd in Italy. It swings a lot from year to year: the biggest winter, 2020/21 (252 cm), brought more than 4 times as much as the leanest, 2021/22 (63 cm). December brings as much snow as January here (38 and 28 cm on average).
Runs and lifts
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.
Marked runs
90
Run length
60km
Lifts
27
Vertical
999m
Top 2,221 m · base 1,221 m
Run map
EasyIntermediateAdvancedLift
North is up. Runs are coloured by difficulty; black lines are lifts.Lifts that run far beyond the ski area are cut at the edge of the map.Slope shape, difficulty and lift types
The shape of the mountain
Longest run on the map4.6 km
Steepest pitch30°measured over at least 30 m
Average gradient of the runs8.5°
Which way the slopes face
North35%
East29%
South18%
West18%
64% of the vertical on the runs descends to the north or east; plenty of the terrain faces the sun as well, so the lean is modest.
The most snow falls in December. March brings as much as January, or more. In amount, March brings 36 cm, less than the median of 48 cm.
38cmDec
28cmJan
33cmFeb
36cmMar
Average snowfall by month, last 12 winters
Winter by winter
Across the 12 winters measured, the average is 135 cm, and 8 of them fell short of it. The leanest was 2021/22 with 63 cm; the biggest was 2020/21 with 252 cm (4.0 times as much).
Over twelve winters, the typical Japanese ski area's best winter was 2.3 times its worst. In Italy and Chile it was 4.6 times, in New Zealand 4.2. Canada, Finland and Sweden come out steadier than Japan.