What's on in San Sebastián (Donostia), Spain through the year
San Sebastián, Spain has 7 curated events through the year — 4 festivals and 3 seasons. The ones to plan around: Tamborrada (January) and Cider house season (January). January, July, August and September 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
Best time to visit San Sebastián (Donostia): weather, crowds and notes →
San Sebastián (Donostia) events and crowds by month
| Month | What starts | Crowds |
|---|---|---|
| January | Cider house season, Tamborrada | Peak crowds |
| February | — | Shoulder season |
| March | — | Quiet |
| April | — | Busy |
| May | — | Busy |
| June | — | Busy |
| July | La Concha swimming season, Jazzaldia | Peak crowds |
| August | Aste Nagusia | Peak crowds |
| September | Autumn and winter swell, Zinemaldia film festival | Peak crowds |
| October | — | Shoulder season |
| November | — | Quiet |
| December | — | Busy |
January in San Sebastián (Donostia)
San Sebastián (Donostia) weather in January →Peak crowds — Tamborrada, Christmas holidays in Spain
- Season
Cider house season
15 Jan – 30 AprHarvestFrom mid-January the sagardotegis in Astigarraga open the barrels: you eat cod omelette and chop standing up and catch cider off the barrel yourself. It closes at the end of April.
- Festival
Tamborrada
19–21 JanMajor festivalCrowdedAt midnight on 19 January the flag goes up in the Plaza de la Constitucion and the city drums for twenty-four hours without stopping, in cook's whites and Napoleonic uniform. Nothing is staged for visitors. Source ↗
Still on: Autumn and winter swell (15 Sep – 31 Mar (usually))
February in San Sebastián (Donostia)
San Sebastián (Donostia) weather in February →Shoulder season — school holidays in 3 of the markets that fill it, an ordinary month
Nothing new starts in February.
Still on: Cider house season (15 Jan – 30 Apr), Autumn and winter swell (15 Sep – 31 Mar (usually))
March in San Sebastián (Donostia)
San Sebastián (Donostia) weather in March →Quiet — travelers describe it as quiet, Semana Santa (Easter) holidays in Spain
Nothing new starts in March.
Still on: Cider house season (15 Jan – 30 Apr), Autumn and winter swell (15 Sep – 31 Mar (usually))
April in San Sebastián (Donostia)
San Sebastián (Donostia) weather in April →Busy — Semana Santa (Easter) holidays in Spain, school holidays in 5 of the markets that fill it
Nothing new starts in April.
Still on: Cider house season (15 Jan – 30 Apr)
May in San Sebastián (Donostia)
San Sebastián (Donostia) weather in May →Busy — school holidays in 4 of the markets that fill it, one of its best months for weather
Nothing new starts in May.
June in San Sebastián (Donostia)
San Sebastián (Donostia) weather in June →Busy — Summer holidays in Spain, school holidays in 3 of the markets that fill it
Nothing new starts in June.
July in San Sebastián (Donostia)
San Sebastián (Donostia) weather in July →Peak crowds — Jazzaldia, Summer holidays in Spain
- Season
La Concha swimming season
1 Jul – 25 Sep · usuallySea warm enoughThe Cantabrian sea is cold and slow to warm, so the bay only really swims from July to late September. The tide matters: at high water La Concha almost disappears.
- Festival
Jazzaldia
20–28 Jul · usuallyMajor festivalCrowdedOne of Europe's oldest jazz festivals, and half of it is free: the big stage sits on the sand at Zurriola and the trio sets run in the squares of the old town. Source ↗
August in San Sebastián (Donostia)
San Sebastián (Donostia) weather in August →Peak crowds — Aste Nagusia, Summer holidays in Spain
- Festival
Aste Nagusia
8–18 Aug · usuallyMajor festivalCrowdedBook earlyThe week around 15 August, when an international fireworks competition is fired over the bay every night and judged by the crowd on the promenade. Rooms are at their dearest. Source ↗
Still on: La Concha swimming season (1 Jul – 25 Sep (usually))
September in San Sebastián (Donostia)
San Sebastián (Donostia) weather in September →Peak crowds — Zinemaldia film festival, Summer holidays in Spain
- Season
Autumn and winter swell
15 Sep – 31 Mar · usuallySurf seasonAtlantic groundswell arrives with the autumn and Zurriola works properly from September to March. It is also when the promenade gets waves over the railings in a storm.
- Festival
Zinemaldia film festival
18–26 SepCrowdedBook earlyNine days in late September that fill the city harder than August does, with public tickets sold in a scramble a fortnight ahead and red carpets outside the Kursaal every evening. Source ↗
Still on: La Concha swimming season (1 Jul – 25 Sep (usually))
October in San Sebastián (Donostia)
San Sebastián (Donostia) weather in October →Shoulder season — school holidays in 4 of the markets that fill it, an ordinary month
Nothing new starts in October.
Still on: Autumn and winter swell (15 Sep – 31 Mar (usually))
November in San Sebastián (Donostia)
San Sebastián (Donostia) weather in November →Quiet — school holidays in 2 of the markets that fill it, one of its worst months for weather
Nothing new starts in November.
Still on: Autumn and winter swell (15 Sep – 31 Mar (usually))
December in San Sebastián (Donostia)
San Sebastián (Donostia) weather in December →Busy — Christmas holidays in Spain, school holidays in 6 of the markets that fill it
Nothing new starts in December.
Still on: Autumn and winter swell (15 Sep – 31 Mar (usually))