What's on in Basel, Switzerland through the year
Basel, Switzerland has 5 curated events through the year — 4 festivals and 1 season. The ones to plan around: Basler Fasnacht (February) and Rhine swimming season (June). July and October are its peak-crowd months.
Updated September 2026 · every event curated and sourced · dates for 2026 where they are announced, the usual window where they are not
Basel events and crowds by month
January in Basel
Basel weather in January →Busy — Christmas holidays in Switzerland, school holidays in 7 of the markets that fill it
Nothing new starts in January.
February in Basel
Basel weather in February →Busy — Basler Fasnacht, school holidays in 3 of the markets that fill it
- Festival
Basler Fasnacht
8 Feb – 15 Mar · usuallyCarnivalCrowdedBook earlyMorgestraich starts at four in the morning on the Monday after Ash Wednesday: the lights go off in the old town and the piccolo and drum cliques walk out under painted lanterns. Three days, and the city works around it rather than through it. Source ↗
March in Basel
Basel weather in March →Busy — Basler Fasnacht, school holidays in 4 of the markets that fill it
Nothing new starts in March.
Still on: Basler Fasnacht (8 Feb – 15 Mar (usually))
April in Basel
Basel weather in April →Busy — Easter holidays in Switzerland, school holidays in 6 of the markets that fill it
Nothing new starts in April.
May in Basel
Basel weather in May →Busy — Spring holidays in Switzerland, school holidays in 4 of the markets that fill it
Nothing new starts in May.
June in Basel
Basel weather in June →Busy — Art Basel, school holidays in 4 of the markets that fill it
- Festival
Art Basel
12–25 Jun · usuallyMajor festivalCrowdedBook earlyThe art fair every other art fair copies, plus a dozen satellite shows across the city. Rooms are booked and priced for it as far out as Freiburg and Mulhouse, so come for it or avoid the week entirely. Source ↗
- Season
Rhine swimming season
15 Jun – 10 Sep · usuallySummer season opensLocals float through the middle of the city with their clothes in a waterproof bag and climb out at the marked steps. The organised mass swim is one evening in August; the rest of it is unofficial, daily and free. Source ↗
July in Basel
Basel weather in July →Peak crowds — Basel Tattoo, Summer holidays in Switzerland
- Festival
Basel Tattoo
8–26 Jul · usuallyMajor festivalCrowdedBook earlyMassed pipes, drums and military bands in the Kaserne courtyard for a fortnight in July, with a free parade through the old town on the opening Saturday. Grandstand seats go months ahead. Source ↗
Still on: Rhine swimming season (15 Jun – 10 Sep (usually))
August in Basel
Basel weather in August →Busy — Summer holidays in Switzerland, school holidays in 7 of the markets that fill it
Nothing new starts in August.
Still on: Rhine swimming season (15 Jun – 10 Sep (usually))
September in Basel
Basel weather in September →Quiet — travelers describe it as quiet, school holidays in 3 of the markets that fill it
Nothing new starts in September.
Still on: Rhine swimming season (15 Jun – 10 Sep (usually))
October in Basel
Basel weather in October →Peak crowds — Basler Herbstmesse, Autumn holidays in Switzerland
- Festival
Basler Herbstmesse
24 Oct – 12 Nov · usuallyMajor festivalCrowdedSwitzerland's oldest fair, running since 1471: rides and stalls spread over half a dozen squares for a fortnight from the last Saturday of October. It is a city fair rather than a tourist one — roast chestnuts, magenbrot, and everyone's grandparents. Source ↗
November in Basel
Basel weather in November →Busy — Basler Herbstmesse, school holidays in 2 of the markets that fill it
Nothing new starts in November.
Still on: Basler Herbstmesse (24 Oct – 12 Nov (usually))
December in Basel
Basel weather in December →Busy — Christmas holidays in Switzerland, school holidays in 7 of the markets that fill it
Nothing new starts in December.