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This weekend

Aletsch Arena

Switzerland · Valais

  • Elevation: 1,057–2,869 m
  • Slopes: 89.5 km
  • Lifts: 43

Run 01/11/2026

7 days

  1. Sun 01/11closedReliability: high
  2. Mon 02/11closedReliability: high
  3. Tue 03/1156bluebird daySun in the morning / Sun in the afternoon: 59% · 59%Reliability: medium
  4. Wed 04/1149so-soSun in the morning / Sun in the afternoon: 21% · 64%Reliability: medium
  5. Thu 05/1155so-soSun in the morning / Sun in the afternoon: 58% · 58%Reliability: medium
  6. Fri 06/1154so-soSun in the morning / Sun in the afternoon: 52% · 52%Reliability: low
  7. Sat 07/1148so-soSun in the morning / Sun in the afternoon: 47% · 47%Reliability: low

Summit / Valley

  • Summit · 2,869 m
  • Valley · 1,057 m
7 daysSun01/11Mon02/11Tue03/11Wed04/11Thu05/11Fri06/11Sat07/11
Scoreaverage of mountain and valley––5649555448
Sunh8–11 h: Sunny11–14 h: Sunny14–17 h: SunnySummit 4.7Valley 4.68–11 h: Sunny11–14 h: Sunny14–17 h: SunnySummit 4.8Valley 4.78–11 h: Sunny11–14 h: Sunny14–17 h: SunnySummit 4.1Valley 4.98–11 h: Fog11–14 h: Sunny14–17 h: SunnySummit 3.2Valley 3.98–11 h: Sunny11–14 h: Sunny14–17 h: SunnySummit 4Valley 48–11 h: Partly cloudy11–14 h: Partly cloudy14–17 h: Partly cloudySummit 3.6Valley 3.58–11 h: Partly cloudy11–14 h: Partly cloudy14–17 h: Partly cloudySummit 3.3Valley 3.3
Fresh snowcmSummit 0Valley 0Summit 0Valley 0Summit 0Valley 0Summit 0Valley 0Summit 0Valley 0Summit 0Valley 0Summit 0Valley 0
Windkm/hSummit 14Valley 12Summit 3Valley 4Summit 7Valley 4Summit 10Valley 7Summit 6Valley 7Summit 7Valley 6Summit 12Valley 7
Temperature°CSummit 8–11 h −6Summit 11–14 h −5Summit 14–17 h −7Valley 7Summit 8–11 h −4Summit 11–14 h −1Summit 14–17 h −2Valley 7Summit 8–11 h −5Summit 11–14 h −4Summit 14–17 h −4Valley 10Summit 8–11 h −6Summit 11–14 h −6Summit 14–17 h −6Valley 8Summit 8–11 h −3Summit 11–14 h −2Summit 14–17 h −2Valley 10Summit 8–11 h −2Summit 11–14 h −1Summit 14–17 h 0Valley 11Summit 8–11 h −2Summit 11–14 h 0Summit 14–17 h 0Valley 11
Data: Summit · 2,869 m · Valley · 1,057 m

Summit · 2,869 m

Aletsch ArenaSun
01/11		Mon
02/11		Tue
03/11		Wed
04/11		Thu
05/11		Fri
06/11		Sat
07/11
Scoreclosedclosed7263737162
Sun in the morning67%68%59%21%58%52%47%
Sun in the afternoon67%68%59%64%58%52%47%
Sun4.7 h4.8 h4.1 h3.2 h4 h3.6 h3.3 h
Fresh snow0 cm0 cm0 cm0 cm0 cm0 cm0 cm
Snow depth1 cm1 cm38 cm38 cm42 cm53 cm53 cm
Wind14 km/h3 km/h7 km/h10 km/h6 km/h7 km/h12 km/h
Wind gusts40 km/h19 km/h19 km/h28 km/h24 km/h25 km/h35 km/h
Temperature−9 / −2°C−8 / −1°C−6 / −4°C−7 / −5°C−7 / −2°C−4 / 0°C−3 / 0°C
Visibility> 10 km> 10 km> 10 km> 10 km> 10 km> 10 km5.5 km

Valley · 1,057 m

Aletsch ArenaSun
01/11		Mon
02/11		Tue
03/11		Wed
04/11		Thu
05/11		Fri
06/11		Sat
07/11
Scoreclosedclosed1515151515
Sun in the morning66%67%70%56%57%51%47%
Sun in the afternoon66%67%70%56%57%51%47%
Sun4.6 h4.7 h4.9 h3.9 h4 h3.5 h3.3 h
Fresh snow0 cm0 cm0 cm0 cm0 cm0 cm0 cm
Snow depth0 cm0 cm0 cm0 cm0 cm1 cm1 cm
Wind12 km/h4 km/h4 km/h7 km/h7 km/h6 km/h7 km/h
Wind gusts37 km/h16 km/h15 km/h22 km/h19 km/h22 km/h28 km/h
Temperature3 / 9°C2 / 9°C4 / 11°C5 / 9°C5 / 11°C6 / 12°C6 / 13°C
Visibility> 10 km> 10 km> 10 km> 10 km> 10 km> 10 km> 10 km

When to go

3 best weeks from 01/11 · combined

  1. W14 · 05/04–11/04AprilCombined 94Sunny days: 6 d/wkSnow reliability: 100% of winters · reliableCrowds (estimate): 1/5 · estimate

  2. W17 · 26/04–02/05AprilCombined 87Sunny days: 4.7 d/wkSnow reliability: 100% of winters · reliableCrowds (estimate): 1/5 · estimate

  3. W15 · 12/04–18/04AprilCombined 85Sunny days: 4.3 d/wkSnow reliability: 100% of winters · reliableCrowds (estimate): 1/5 · estimate

Season 2026/27: sun · snow · crowds

Ø across winters by week · crowds = estimate · vertical line = run 01/11

Sunny days per week
Snow reliability (≥ 30 cm)
Crowds 1–5 (estimate)
Data by week
WeekSunny daysSnow reliabilityCrowdsCombined
W49 · 30/11–06/122.3 d/wk100% of winters1/5 quiet73
W50 · 07/12–13/123.8 d/wk100% of winters2/5 light76
W51 · 14/12–20/122.5 d/wk74% of winters2/5 light59
W52 · 21/12–27/123.8 d/wk77% of winters4/5 busy57
W53 · 28/12–03/010 d/wkno snow history4/5 busy8
W1 · 04/01–10/013.8 d/wk83% of winters3/5 moderate65
W2 · 11/01–17/012.8 d/wk93% of winters2/5 light68
W3 · 18/01–24/013.3 d/wk98% of winters2/5 light73
W4 · 25/01–31/014.8 d/wk100% of winters2/5 light82
W5 · 01/02–07/023.8 d/wk100% of winters2/5 light76
W6 · 08/02–14/024.5 d/wk100% of winters3/5 moderate76
W7 · 15/02–21/024 d/wk100% of winters2/5 light78
W8 · 22/02–28/023.3 d/wk100% of winters2/5 light74
W9 · 01/03–07/033.5 d/wk100% of winters2/5 light75
W10 · 08/03–14/034.3 d/wk100% of winters2/5 light79
W11 · 15/03–21/032.3 d/wk100% of winters2/5 light68
W12 · 22/03–28/033.8 d/wk100% of winters3/5 moderate71
W13 · 29/03–04/043.3 d/wk100% of winters2/5 light74
W14 · 05/04–11/046 d/wk100% of winters1/5 quiet94
W15 · 12/04–18/044.3 d/wk100% of winters1/5 quiet85
W16 · 19/04–25/043.3 d/wk100% of winters1/5 quiet79
W17 · 26/04–02/054.7 d/wk100% of winters1/5 quiet87

History: sunny days by month

Ø days per week · winters 2011/12–2025/26 · 4 years

MonthSunny days at the summitSunny days in the valleyBluebird daysGrey daysSnow ≥ 30 cm
December3.202.52.1100%
January3.40.22.42100%
February42.83.21.6100%
March3.43.732.1100%
April4.63.74.11.6100%

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