Saint Matthew 2019 - Burgo de Osma-Ciudad de Osma from September 20 to September 22. Past days. Saturday, September 14 Friday, September 20 Saturday, September 21 Sunday, September 22 You might be also interested in: Fiesta of Arande de Duero 2019 - Aranda de Duero (Burgos) - 71 Kms.