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Resort dossier
Bonneval-sur-Arc
FR·Haute-Mauriennemore snow sure
Weeks 1–4
Typically -7.8°C · 26cm fresh / week · powder day 49% · mixed 40%
Top elev.
3000m
Base elev.
1800m
Pistes
25km
Lifts
10
Piste mix20km mapped
Green16%
Blue47%
Red21%
Black11%
Other5%
COMPOSITE SCORE
62
Snow89
Typically 143cm
Typical depth143cm
118cm179cm
Travel32
From your origin
Size51
Linked-area piste-km
Fit50
Vibe, terrain, activities
What to expect
What to expect in weeks 1–4
Based on 40 winters of weather data, modelled at ~2802m (not the village). Any single year can be very different.
Typically mixed, around -7.8°C, with 26cm of fresh snow over the week. Powder days hit 49% of the time. Other weeks run stormy or cold and clear.
Icy mornings
0.1 days/week
spring-like in 1% of years
Snow texture
Powdery
soft, easy turns
Typical wind
0.6 m/s
peaks to 21 m/s
Typical Freezing level
1200 m
0°C isotherm
Powder days
49%
of years see 10cm+
Rain at base
0 days
per week
Storm
38%
of years
Bluebird
22%
of years
Thaw
0%
of years
Mixed
40%
of years
Climatology
What a season here looks like
Each track shows the typical range across 40 winters. The marker shows where your selected weeks sit.
Reliability60cm+
100%
Depth
143cm
Temperature
-7.8°C
Fresh snow
26cm
Snow line
1200m
Wind
0.6 m/s
Transfers
Transfers
| Airport | Drive | Train |
|---|---|---|
| Chambéry (CMF) | 122 min | |
| Grenoble (GNB) | 169 min | |
| Geneva (GVA) | 191 min | |
| Milan Malpensa (MXP) | 194 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.
- Bonneval sur Arcmeteofrance
- Bessansmeteofrance