The tradition of judicial holidays in September goes back generations in Portugal, persisting from the agrarian era to the services economy. This practice existed long before April 25th and continued for quite some time after that date.
Judicial holidays traditionally lasted from the end of July to the beginning of October, with September falling in the middle of this period. For many years, their justification was linked to the bread and wine harvests, a tradition dating back to the ancient Ordenations of the Kingdom of Portugal.
Over the years, the agricultural justification became increasingly irrelevant as the country transformed into a services society. However, the tradition somehow persisted throughout the decades.
