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SkiWeather.eu Ski Decision Planner

Bernina Diavolezza 7-day ski planner

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

Horizon7 days
Terrain2093–3006 m
Best dayFriday
Best score70/100
ObservedCurrent snowpack30 cm upper85% confidenceNowMountain operation17% access85% confidenceDecisionBest skiing dayFriday · 70/10094% confidenceShort rangeIncoming snow0.0 cm weighted across altitude bands94% confidenceShort rangeWeather supportClear sky · freezing 2695 m · peak wind 6 km/h94% confidence

Best skiing window

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

Best dayFridayOct 30
70/100Fair
Forecast confidenceHigh94/100 evidence confidence
  • + Good visibility is likely
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Snow support is limited on part of the terrain
Day 1ThursdayOct 29
68/100Fair
Clear sky-5 to 5 °C0 cm weighted fresh snowConfidence High
Snow43
Fresh snow55
Weather88
Visibility96
Wind100
  • + Good visibility is likely
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower2093 m

Temperature-5 to 5 °C

Fresh snow0 cm

Precipitation phaseDry

Mid2550 m

Temperature-8 to 2 °C

Fresh snow0 cm

Precipitation phaseDry

Upper3006 m

Temperature-11 to -1 °C

Fresh snow0 cm

Precipitation phaseDry

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 2FridayOct 30
70/100Fair
Clear sky-3 to 3 °C0 cm weighted fresh snowConfidence High
Snow44
Fresh snow55
Weather96
Visibility96
Wind100
  • + Good visibility is likely
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower2093 m

Temperature-3 to 3 °C

Fresh snow0 cm

Precipitation phaseDry

Mid2550 m

Temperature-6 to -1 °C

Fresh snow0 cm

Precipitation phaseDry

Upper3006 m

Temperature-9 to -4 °C

Fresh snow0 cm

Precipitation phaseDry

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 3SaturdayOct 31
70/100Fair
Clear sky-8 to 2 °C0 cm weighted fresh snowConfidence High
Snow45
Fresh snow55
Weather96
Visibility96
Wind100
  • + Good visibility is likely
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower2093 m

Temperature-8 to 2 °C

Fresh snow0 cm

Precipitation phaseDry

Mid2550 m

Temperature-11 to -1 °C

Fresh snow0 cm

Precipitation phaseDry

Upper3006 m

Temperature-14 to -4 °C

Fresh snow0 cm

Precipitation phaseDry

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 4SundayNov 1
67/100Fair
Partly cloudy-10 to -6 °C0 cm weighted fresh snowConfidence High
Snow45
Fresh snow55
Weather96
Visibility80
Wind100
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower2093 m

Temperature-10 to -6 °C

Fresh snow0 cm

Precipitation phaseDry

Mid2550 m

Temperature-13 to -9 °C

Fresh snow0 cm

Precipitation phaseDry

Upper3006 m

Temperature-16 to -12 °C

Fresh snow0 cm

Precipitation phaseDry

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 5MondayNov 2
67/100Fair
Partly cloudy-9 to -2 °C0 cm weighted fresh snowConfidence Moderate
Snow45
Fresh snow55
Weather96
Visibility80
Wind100
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower2093 m

Temperature-9 to -2 °C

Fresh snow0 cm

Precipitation phaseDry

Mid2550 m

Temperature-12 to -5 °C

Fresh snow0 cm

Precipitation phaseDry

Upper3006 m

Temperature-15 to -8 °C

Fresh snow0 cm

Precipitation phaseDry

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 6TuesdayNov 3
70/100Fair
Fair-4 to 0 °C0 cm weighted fresh snowConfidence Moderate
Snow45
Fresh snow55
Weather96
Visibility96
Wind100
  • + Good visibility is likely
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower2093 m

Temperature-4 to 0 °C

Fresh snow0 cm

Precipitation phaseUnknown

Mid2550 m

Temperature-7 to -3 °C

Fresh snow0 cm

Precipitation phaseUnknown

Upper3006 m

Temperature-10 to -6 °C

Fresh snow0 cm

Precipitation phaseUnknown

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 7WednesdayNov 4
69/100Fair
Cloudy0 to 1 °C1 cm weighted fresh snowConfidence Moderate
Snow46
Fresh snow63
Weather96
Visibility80
Wind100
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower2093 m

Temperature0 to 1 °C

Fresh snow1 cm

Precipitation phaseSnow

Mid2550 m

Temperature-3 to -2 °C

Fresh snow1 cm

Precipitation phaseSnow

Upper3006 m

Temperature-6 to -5 °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.