Fiesta of Santimami 2019 from August 17 to August 18. Past days. Saturday, August 17 Sunday, August 18 You might be also interested in: Big Week 2019 - Bilbao - 9 Kms. Saint Roch 2019 - Llodio (Alava) - 21 Kms. Fiesta of Herran 2019 - Herran (Burgos) - 66 Kms.