Season calendar · Valais
When is high season in Valais 2026?
Valais attracts Swiss and German guests — weighted by these source markets, the calendar shows the demand peaks, in ski season as well as summer.
High season · 8 weeks
11 July – 14 August
5 weeks
04 April – 10 April
1 week
03 October – 09 October
1 week
19 December – 25 December
1 week
This is where willingness to pay is highest — and the calendar fills up first.
Shoulder season · 12 weeks
15 August – 04 September
3 weeks
11 April – 24 April
2 weeks
10 October – 23 October
2 weeks
03 January – 09 January
1 week
and 4 more, shorter periods
Low season · 31 weeks
25 April – 03 July
10 weeks
24 October – 18 December
8 weeks
10 January – 13 February
5 weeks
21 February – 27 March
5 weeks
and 1 more, shorter periods
How it's calculated
1
For each canton, school holiday dates are loaded — the source is official cantonal open data (
opendata.swiss) and OpenHolidays, cross-checked across sources.
2
For each calendar week, we count which cantons are on holiday — weighted by their importance as a source market. Where most guests come from counts the most.
3
The classification is peak-anchored: the densest week sets the benchmark, every other week is measured against it. That keeps the calendar comparable across years.
The calendar reflects holiday demand, not your actual bookings. Regional public holidays, trade fairs, events and weather come on top. A guideline, not a guarantee.
This is the official source (cantonal open data (opendata.swiss) & OpenHolidays), but there's a discrepancy: Herbstferien (26. September 2026–17. Oktober 2026) — another source (official, ferienwiki, openholidays) states a different date range. We continue to treat the official source as authoritative — double-check if needed.