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Resort dossier
Arosa
Weeks 7–10
Typically -9.5°C · 23cm fresh / week · powder day 34% · mixed 64%
Top elev.
2653m
Base elev.
1740m
Pistes
225km
Lifts
43
Piste mix164km mapped
Green1%
Blue57%
Red31%
Black9%
Freeride3%
COMPOSITE SCORE
65
Snow88
Typically 127cm
Typical depth127cm
104cm154cm
Travel33
From your origin
Size82
Piste km, discounted for linked-area connectivity
Fit50
Vibe, terrain, activities
What to expect
What to expect in weeks 7–10
Based on 25 winters of weather data, modelled at ~1528m (not the village). Any single year can be very different.
Typically mixed, around -9.5°C, with 23cm of fresh snow over the week. Powder days hit 34% of the time. Other weeks run stormy.
Icy mornings
3.2 days/week
spring-like in 44% of years
Snow texture
Settled
packed, predictable piste
Typical wind
13.1 m/s
peaks to 24 m/s
Typical Freezing level
731 m
0°C isotherm
Powder days
34%
of years see 10cm+
Rain at base
0 days
per week
Storm
21%
of years
Bluebird
14%
of years
Thaw
0%
of years
Mixed
64%
of years
Climatology
What a season here looks like
Each track shows the typical range across 25 winters. The marker shows where your selected weeks sit.
Reliability60cm+
100%
Depth
127cm
Temperature
-9.5°C
Fresh snow
23cm
Snow line
732m
Wind
13.1 m/s
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Transfers
Transfers
| Airport | Drive | Train |
|---|---|---|
| Bern (BRN) | 210 min | |
| Friedrichshafen (FDH) | 120 min | |
| Milan Malpensa (MXP) | 208 min | |
| Zürich (ZRH) | 150 min |
Method & sources
The composite score weights snow reliability against the historical baseline, pulls in live conditions where available, then adjusts for how much hassle the trip actually is for your group.
- 01ERA5-Land hourly grid → daily SWE & snow depth at the resort cell.
- 02Bias-correct against ground stations (SLF / Météo-France nivôse).
- 03Build per-week climatological percentile · 35 winters.
- 04Anomaly = current week vs. cell's own 30-year baseline.
- 05Snow-sure read at the highest-snow cell within ~15km. When most resorts are bare, ranking shifts toward this, surfacing glaciers in shoulder seasons.
- 06Weight + rank against your origin & vibe profile.
Sources
Snow data sources
Ground stations the score is based on.
- PAR2slf
- WFJ2slf