Big Week 2022 - San Sebastian from August 13 to August 20. Past days. Saturday, August 13 Sunday, August 14 Monday, August 15 Tuesday, August 16 Wednesday, August 17 Thursday, August 18 Friday, August 19 Saturday, August 20 You might be also interested in: Fiesta of Ondarroa 2022 - Ondarroa (Biscay) - 51 Kms. Andra Mari 2022 - Larrabezua (Biscay) - 95 Kms. Saint Mary 2022 - Tafalla (Navarre) - 100 Kms.