August Fiesta 2016 - Aretxabaleta from August 13 to August 17. Past days. Saturday, August 13 Sunday, August 14 Monday, August 15 Tuesday, August 16 Wednesday, August 17 You might be also interested in: Summer Fiesta 2016 - Azkoitia - 28 Kms. Big Week 2016 - San Sebastian - 69 Kms. Fiesta of Ondarroa 2016 - Ondarroa (Biscay) - 35 Kms. Summer Fiesta 2016 - Llodio (Alava) - 55 Kms. Fiesta of Amurrio 2016 - Amurrio (Alava) - 58 Kms.