About Spain's Public Holiday Calendar
On top of Spain's 10 national holidays, each of the country's 17 autonomous communities adds its own regional holidays, so the answer to "is today a holiday in Spain" can vary by region (the list here covers only the holidays observed nationwide).
Unlike in the UK, Spain does not shift a holiday to a weekday when it falls on a weekend — in 2026 several national holidays land on a Saturday or Sunday with no substitute day granted.