The sanctuary is built on the site of a 16th-century chapel that gained importance due to a supposed miraculous intervention during a drought.
The annual pilgrimage held here is officially designated as a Romaria and attracts thousands of participants, including many traveling by horse or traditional carriages.
The building's layout incorporates a 'zimbório' or dome, which is a classic feature of the transition from Baroque to Neoclassical architecture in Portugal.
Local tradition suggests the sanctuary was funded by contributions from cattle ranchers and farmers seeking protection for their crops and livestock.
The Santuário de Nossa Senhora d'Aires is a prominent Baroque-style pilgrimage site located just outside the village of Viana do Alentejo. The current structure dates primarily to the 18th century, commissioned by the Brotherhood of Nossa Senhora d'Aires to replace a smaller 16th-century hermitage. Its architecture features a notable facade with a central staircase and twin bell towers that flank a grand entrance. The interior contains ornate gilded woodwork and tiles that reflect the religious art typical of the Alentejo region. The site serves as the central hub for the annual Romaria a Nossa Senhora d'Aires, one of the most significant religious festivals in the district of Évora. The surrounding grounds provide a spacious courtyard designed to accommodate large crowds during these traditional gatherings.
From the base of the wide frontal staircase looking up at the central facade and the twin bell towers.
Bring sun protection, as the sanctuary is situated in an open, exposed area of the Alentejo plains with limited shade.
Visit during the shoulder seasons of spring or autumn to avoid the intense summer heat of the region.
Walk the perimeter of the courtyard to observe the architectural details of the external support buildings used during festivals.
Do not attempt to walk from the village of Viana do Alentejo during the peak heat of the afternoon in July or August.
The sanctuary grounds are generally accessible, but the interior chapel access may be restricted outside of religious services or specific festival dates.
Maintain a quiet and respectful demeanor; cover shoulders and avoid overly casual attire when entering the interior.
