The eve of the Assumption (14 August) opens the cycle of 15 August, a Marian solemnity and a nationwide public holiday in Spain.
Verified data
In 2026, the dataset records Eve of the Assumption as a local holiday in 8 municipalities, accounting for 33,311 residents in the 2025 register. The most common date is 14 August 2026.
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.
48.7% / 51.3%
15.6%
68.9%
15.5%
10%
13.6%
41.7 years
Comparison with Spain and with the aggregate of the 5 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 5 regions |
|---|---|---|---|
| Aged 0–14 | 15.6% | +2.7 pp | +2.5 pp |
| Aged 65+ | 15.5% | -5.3 pp | -4.8 pp |
| Foreign citizenship | 10% | -4.1 pp | -2.7 pp |
| Born outside Spain | 13.6% | -5.7 pp | -3.8 pp |
| Weighted mean age | 41.7 years | -2.8 years | -2.5 years |
The largest difference from Spain is in “Born outside Spain”: -5.7 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.
15 August commemorates the Assumption of Mary: in Catholic belief, her being taken up body and soul into heavenly glory. It is an ancient liturgical solemnity and, in Spain, a non-substitutable national holiday. The eve—the 14th—is, in many towns, the practical start of the festival: proclamation, Marian hymn, street parade or the first lights.
Some town halls set that eve itself as the local public holiday, so the labour rest falls on the 14th even though the liturgical and national great day is the 15th. In 2026 several municipalities in the dataset record «Víspera de la Asunción» (or similar wording) on 14 August.
There is no single rite for every place: the Assumption is patron or titular of countless parishes, and each combines worship and summer in its own way—procession, night dance, fair. What is shared is the calendar: the eve prepares the solemnity that the next day applies across Spain.
Anyone planning a long weekend should check both days: the 15th is national; the 14th is a day off only where the municipality has named it as a local feast.
When
In 2026 it falls on Friday 14 August in most municipalities.
| Year | Main date | Municipalities |
|---|---|---|
| 2026 | Friday, 14 August | 8 |
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 33,311 residents in the INE municipal register at 1 January 2025.
Andalucía3
Castilla y León2
Aragón1
Castilla-La Mancha1
Comunidad de Madrid1
FAQ
In 2026, Eve of the Assumption is mainly celebrated on 14 August 2026 (Friday). Some municipalities move it to another date on the working calendar.
It's a local holiday in 8 municipalities in 2026, accounting for 33,311 residents in the 2025 register; mostly in Andalucía (3 municipalities).
No. Eve of the Assumption 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.