St Ciaran's Pattern Day Pilgrimage at Clonmacnoise

Clonmacnoise marks its biggest date in the religious calendar each September with Pattern Day, the pilgrimage and Mass held in honour of St Ciaran, who founded the monastery on the banks of the Shannon in 544. The tradition has continued at the site for close to 1,500 years, making it one of the few places in Ireland with an unbroken pilgrimage record stretching from the early medieval period to today. The 2026 pilgrimage is expected on or close to Sunday, 13 September, the Sunday nearest the saint’s 9 September feast day.

What to expect

Pattern Day at Clonmacnoise centres on prayer among the ruined churches and round towers rather than festivity. Tradition holds that pilgrims visit St Ciaran’s Well on the Shannonbridge road before or after the main service, and that the Pilgrim Cross is carried in procession around the monastic enclosure while the rosary is recited. Pattern Prayers typically begin in the afternoon, around 3pm, followed by a concelebrated Mass said by the Bishop of Ardagh and Clonmacnoise along with visiting clergy. Crowds are drawn from across the diocese and beyond, many with family or parish links to the pilgrimage stretching back generations. The Seven Churches, the high crosses and the round tower give the ceremony a backdrop found nowhere else in Ireland, and the Office of Public Works visitor centre on site stays open to pilgrims on the day.

Getting there

Clonmacnoise is signposted from Shannonbridge, 6km away, and Athlone, 13km away, reached via the R444. There is no train service to the site itself; the nearest station is Athlone. On-site parking is provided by the OPW visitor centre, though pilgrimage days draw larger crowds than a normal visit, so allow extra time. Local parish transport is sometimes arranged from Tullamore and Athlone; check with the diocese in advance.

While you’re in Clonmacnoise

Clonmacnoise is one of Ireland’s most visited monastic sites outside pilgrimage days too, with the Nuns’ Church and the Shannon callows both within walking distance. The nearby Blackwater Bog and Shannon Harbour are worth combining with a visit. There is more to see in Clonmacnoise and across Co. Offaly.

Good to know

• Date: Sunday, 13 September 2026 (traditionally the Sunday nearest 9 September, St Ciaran’s feast day)
• Pattern Prayers: from around 3:00pm, followed by a concelebrated Mass
• Venue: Clonmacnoise Monastic Site, Co. Offaly
• Price: free to attend
• The exact 2026 date is set by the Diocese of Ardagh and Clonmacnoise; confirm closer to the time