San Sebastián is a local holiday in 108 municipalities in the Spanish working calendar; in 2026 the most common date is 20 January.
Other regions: 9 · 39 municipalities
Verified data
In 2026, the dataset records San Sebastián as a local holiday in 255 municipalities, accounting for 1,289,352 residents in the 2025 register. The most common date is 20 January 2026. 13 municipalities set it on another date.
This comparison uses only the official working calendars incorporated into the dataset for each year.
Demographic profile
Age, citizenship, birthplace and average-age structure from the 2025 Annual Population Census.
50.5% / 49.5%
12.6%
67.4%
19.9%
18.1%
24%
44.2 years
Comparison with Spain and with the aggregate of the 15 regions where it is observed. All five comparisons are population-weighted and use only the 2025 Annual Census. A positive sign means the covered population has a higher value than the benchmark.
| Demographic profile | Covered population | Compared with Spain | Compared with its 15 regions |
|---|---|---|---|
| Aged 0–14 | 12.6% | -0.3 pp | -0.3 pp |
| Aged 65+ | 19.9% | -0.8 pp | -0.8 pp |
| Foreign citizenship | 18.1% | +4 pp | +3.9 pp |
| Born outside Spain | 24% | +4.7 pp | +4.6 pp |
| Weighted mean age | 44.2 years | -0.4 years | -0.4 years |
The largest difference from Spain is in “Born outside Spain”: +4.7 pp.
Sex comes from the 2025 municipal register; all other metrics come from the 2025 Annual Census. Each percentage uses the total from its own statistical operation. INE municipal tables 68535 and 68541.
Saint Sebastian is a martyr whose liturgical memory is celebrated on 20 January.
In the working calendar, San Sebastián appears as a local holiday — not as a national or general regional holiday. Each municipality may set up to two local holidays a year; This dedication or name is one of those that most municipalities adopt (108 in the reference index).
In 2026, among the municipalities that record it, the most common date is 20 January. 8 municipalities set it on another date. The communities with the most records are Aragón, Castilla and León, Castilla-La Mancha and Andalusia. This page summarises the scope verified in the dataset; It does not add legends or local traditions that have not been checked. The details of each municipality keeps its official source.
When
In 2026 it falls on Tuesday 20 January in most municipalities. 13 move it to another date (when it lands on a weekend or by local agreement).
| Year | Main date | Municipalities |
|---|---|---|
| 2024 | Saturday, 20 January | 47 |
| 2025 | Monday, 20 January | 104 |
| 2026 | Tuesday, 20 January | 255 |
Where it's a holiday
Its local holiday in 2026, by region. Each municipality links to its annual record and the available official source.
Together, they account for 1,289,352 residents in the INE municipal register at 1 January 2025.
Aragón52
AbantoAínsa-SobrarbeAinzónAlcorisaAlerreAlforqueAlluevaAlmunia de Doña Godina, LaAlmunia de San JuanAmbelAnsóAzanuy-AlinsBaldellouBiscarruésCarenasCastejón de MonegrosCastejón de SosCastejón de ValdejasaCastelserásCellaCuerlas, LasErlaFayónFueva, LaGallocantaJarque de MoncayoJasaLabuerdaLaluengaLanajaLaspuñaLechónLongaresMagallónNavalNoguera de AlbarracínNuévalosOrésPedrolaPeñarroya de TastavinsPiedratajadaPoleñinoPuértolasRubielos de la CéridaSalvatierra de EscaSan Mateo de GállegoSangarrénSenés de AlcubierreSierra de LunaSotonera, LaTabuencaTramacastielCataluña46
Alamús, ElsAlbagés, L'AlfarràsAlfésAlmenarAlòs de BalaguerArresBelianesBellvísCadaquésCastellseràCogul, ElColomersCunitEspollaFondarellaForadadaGranja d'Escarp, LaGratallopsIvars de NogueraMaialsMiralcampMolsosa, LaOluges, LesOlvanOmellons, ElsOristàPerelló, ElPla del Penedès, ElPont de MolinsPont de Suert, ElPujaltRiu de CerdanyaRiudauraSant Joan de MolletSant Llorenç d'HortonsSant MoriSant Pere PescadorSanta Maria d'OlóSelva de Mar, LaSeu d'Urgell, LaTérmensTorrebessesTorrelameuValliranaVilagrassaCastilla y León43
Abarca de CamposAdrada de HazaAldea del ObispoAldeanueva de la SerrezuelaAltableAusejo de la SierraBastida, LaBuitragoCampillo de AzabaCarrascal del ObispoCasillasCillánCiudad RodrigoDévanosGil GarcíaHinojosa del CampoMironcilloMoraleja de MatacabrasNavalillaParedes de NavaPoyales del HoyoPuebla de PedrazaRollamientaRollánRoyuela de Río FrancoRuedaSan García de IngelmosSan Miguel de la RiberaSanta Marta del CerroSanzolesSiete Iglesias de TrabancosSorihuelaTornadizo, ElTórtolesValdelageveVecinosVillacastínVillaverde de ÍscarVilvestreVitaVozmedianoYecla de YeltesZamarraAndalucía33
AlbuñuelasAlcaucínAlcoleaAlhaurín de la TorreAlicúnArenas del ReyBenalúa de las VillasBenamargosaBenarrabáCabra del Santo CristoCañete la RealDílarFiñanaFrigilianaGérgalHiguera de CalatravaHuétor de SantillánHuévar del AljarafeInstinciónLubrínLúcarMarchenaNíjarPadulPuebla del Río, LaQuéntarQuesadaSierroSomontínTabernasTíjolaTorrecampoVillanueva de las CrucesCastilla-La Mancha27
AlarcónCampillos-ParavientosCondemios de ArribaFernán CaballeroGraja de CampalboHinojosa, LaHortezuela de OcénHuerce, LaMadridejosMalpica de TajoMarrupeMedrandaMillanaMohedas de la JaraMontesclarosNavalucillos, LosNuño GómezParrillasPastranaRobledo del MazoSevilleja de la JaraSotillo de las PalomasTalayuelasValdarachasValdemanco del EsterasVillalba del ReyVillamiel de ToledoExtremadura15
AceboAcehúcheAceitunaBarradoBotijaCachorrillaCampillo de DeleitosaCasas de MillánCristinaGranja, LaHernán-PérezHiguera de AlbalatPiornalPortajePortezueloOther regions
Comunitat Valenciana9
Comunidad de Madrid6
País Vasco3
Cantabria1
Galicia1
FAQ
In 2026, San Sebastián is mainly celebrated on 20 January 2026 (Tuesday). Some municipalities move it to another date on the working calendar.
It's a local holiday in 255 municipalities in 2026, accounting for 1,289,352 residents in the 2025 register; mostly in Aragón (52 municipalities).
No. San Sebastián is a local-level holiday: it's only a non-working day in the municipalities that set it as their local festival; each keeps its official source.
Other holidays
Per-municipality data with its official source (regional gazette). Every date is verifiable on the municipality page. Data from festivos.io — CC BY 4.0.