Les Saisies · Peak Window

What to expect

What to expect in weeks 7–10

Based on 40 winters of weather data, modelled at ~991m (not the village). Any single year can be very different.

Typically mixed, around -7.7°C, with 27cm of fresh snow over the week. Powder days hit 51% of the time. Other weeks run stormy.

Icy mornings

4.8 days/week

spring-like in 74% of years

Snow texture

Heavy / wet

spring snow, sticky and slow

Typical wind

2.1 m/s

peaks to 15 m/s

Typical Freezing level

676 m

0°C isotherm

Powder days

51%

of years see 10cm+

Rain at base

0 days

per week

Storm

37%

of years

Bluebird

16%

of years

Thaw

of years

Mixed

46%

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+

99%

Depth

129cm

Temperature

-7.7°C

Fresh snow

27cm

Snow line

677m

Wind

2.1 m/s

Transfers

Airport	Drive	Train
Chambéry (CMF)	79 min
Grenoble (GNB)	125 min
Geneva (GVA)	113 min
Lyon (LYS)	127 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.

Les Saisiesmeteofrance