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SkiWeather.eu Ski Decision Planner

Les Contamines 7-day ski planner

Choose the strongest skiing window using an explainable combination of current snow, altitude-specific fresh snow,…

Horizon7 days
Terrain1164–2437 m
Best dayThursday
Best score81/100
ObservedCurrent snowpack95 cm upper85% confidenceNowMountain operation52% access85% confidenceDecisionBest skiing dayThursday · 81/10094% confidenceShort rangeIncoming snow0.0 cm weighted across altitude bands94% confidenceShort rangeWeather supportIsolated light showers · freezing 1650 m · peak wind 5 km/h94% confidence

Best skiing window

The strongest current balance of snow support, fresh snow, temperature, visibility and wind.

Best dayThursdayOct 22
81/100Very good
Forecast confidenceHigh94/100 evidence confidence
  • + Existing snow and temperature support are strong
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
Day 1WednesdayOct 21
70/100Good
Moderate to heavy rain3 to 9 °C1.2 cm weighted fresh snowConfidence High
Snow80
Fresh snow63
Weather80
Visibility33
Wind100
  • + Wind should have little operational impact
  • − Visibility may be poor or highly variable
Altitude-band detail
Lower1164 m

Temperature3 to 9 °C

Fresh snow0 cm

Precipitation phaseRain

Mid1824 m

Temperature-1 to 5 °C

Fresh snow1 cm

Precipitation phaseSnow

Upper2437 m

Temperature-5 to 1 °C

Fresh snow2 cm

Precipitation phaseSnow

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 2ThursdayOct 22
81/100Very good
Isolated light showers0 to 4 °C0 cm weighted fresh snowConfidence High
Snow86
Fresh snow55
Weather96
Visibility80
Wind100
  • + Existing snow and temperature support are strong
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
Altitude-band detail
Lower1164 m

Temperature0 to 4 °C

Fresh snow0 cm

Precipitation phaseRain

Mid1824 m

Temperature-5 to 0 °C

Fresh snow0 cm

Precipitation phaseSnow

Upper2437 m

Temperature-9 to -4 °C

Fresh snow0 cm

Precipitation phaseSnow

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 3FridayOct 23
70/100Good
Heavy rain3 to 9 °C1.2 cm weighted fresh snowConfidence High
Snow80
Fresh snow63
Weather80
Visibility33
Wind100
  • + Wind should have little operational impact
  • − Visibility may be poor or highly variable
Altitude-band detail
Lower1164 m

Temperature3 to 9 °C

Fresh snow0 cm

Precipitation phaseRain

Mid1824 m

Temperature-1 to 5 °C

Fresh snow1 cm

Precipitation phaseSnow

Upper2437 m

Temperature-5 to 1 °C

Fresh snow2 cm

Precipitation phaseSnow

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 4SaturdayOct 24
79/100Good
Heavy snow-1 to 1 °C3.6 cm weighted fresh snowConfidence High
Snow95
Fresh snow63
Weather96
Visibility41
Wind100
  • + A useful fresh-snow top-up is forecast
  • + Existing snow and temperature support are strong
  • + Wind should have little operational impact
  • − Visibility may be poor or highly variable
Altitude-band detail
Lower1164 m

Temperature-1 to 1 °C

Fresh snow2 cm

Precipitation phaseSnow

Mid1824 m

Temperature-5 to -3 °C

Fresh snow2 cm

Precipitation phaseSnow

Upper2437 m

Temperature-9 to -7 °C

Fresh snow6 cm

Precipitation phaseSnow

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 5SundayOct 25
72/100Good
Heavy rain2 to 7 °C3.1 cm weighted fresh snowConfidence Moderate
Snow84
Fresh snow63
Weather80
Visibility33
Wind100
  • + A useful fresh-snow top-up is forecast
  • + Existing snow and temperature support are strong
  • + Wind should have little operational impact
  • − Visibility may be poor or highly variable
Altitude-band detail
Lower1164 m

Temperature2 to 7 °C

Fresh snow0 cm

Precipitation phaseRain

Mid1824 m

Temperature-2 to 3 °C

Fresh snow2 cm

Precipitation phaseSnow

Upper2437 m

Temperature-6 to -1 °C

Fresh snow6 cm

Precipitation phaseSnow

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 6MondayOct 26
73/100Good
Light rain showers3 to 7 °C0 cm weighted fresh snowConfidence Moderate
Snow76
Fresh snow55
Weather72
Visibility74
Wind100
  • + Wind should have little operational impact
  • − Rain is possible around mid-mountain level
Altitude-band detail
Lower1164 m

Temperature3 to 7 °C

Fresh snow0 cm

Precipitation phaseRain

Mid1824 m

Temperature-1 to 3 °C

Fresh snow0 cm

Precipitation phaseRain

Upper2437 m

Temperature-5 to -1 °C

Fresh snow0 cm

Precipitation phaseRain

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 7TuesdayOct 27
62/100Fair
Moderate to heavy rain5 to 15 °C0.8 cm weighted fresh snowConfidence Moderate
Snow71
Fresh snow55
Weather48
Visibility41
Wind100
  • + Wind should have little operational impact
  • − Visibility may be poor or highly variable
Altitude-band detail
Lower1164 m

Temperature5 to 15 °C

Fresh snow0 cm

Precipitation phaseRain

Mid1824 m

Temperature1 to 11 °C

Fresh snow1 cm

Precipitation phaseSnow

Upper2437 m

Temperature-3 to 7 °C

Fresh snow1 cm

Precipitation phaseSnow

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

How the Ski Decision score works

An explainable planning score, not a stored source metric.

The daily score combines Snow 25%, Fresh Snow 15%, Weather 20%, Visibility 15%, Wind 15%, Operation 10%. Missing inputs reduce confidence rather than automatically lowering the skiing score. Rain at ski altitude, strong wind and poor visibility are explicit penalties; fresh snow and a well-supported existing base are positive signals.

The overall score should be used together with official lift status, avalanche bulletins, closures and local safety guidance. It does not replace operational or avalanche information.