Fiesta of Guadarrama 2026 on August 15. Past days. Saturday, August 8 Sunday, August 9 Wednesday, August 12 Thursday, August 13 Friday, August 14 Saturday, August 15 Sunday, August 16 You might be also interested in: August Fiesta in Los Arroyos 2026 - Los Arroyos - 9 Kms. Saint Roch 2026 - Becerril de la Sierra - 13 Kms. Saint Cajetan, Saint Lawrence and La Paloma 2026 - City Center - 54 Kms. Our Lady of Butarque 2026 - Leganes - 55 Kms. Summer Fiesta 2026 - Miraflores de la Sierra - 41 Kms.