Public Holidays in Oñati:
- 1 January: New Year's Day
- 6 January: Epiphany Day (Reyes)
- 28-29 March and 1 April: Easter (Semana Santa)
- 1 May: Labour Day
- 25 July: Santiago, Patron Saint of Spain
- 31 July: San Ignacio, Patron Saint of Gipuzkoa
- 15 August: Assumption of the Virgin
- 9 September: Virgin of Arantzazu, Patron of Gipuzkoa
- 29 September: San Miguel, Patron Saint of Oñati
- 12 October: El Pilar, Spanish national holiday
- 1 November: All Saints’ Day (Todos los Santos)
- 6 and 8 December: Spain’s national holidays
- 25 December: Christmas
The IISL will be closed on all of the above dates and in other dates (weekends, vacation periods, etc.). To see the IISL's calendar and opening hours for 2024, please see this link.