Mass Calendar
When school is in session, Kairos Mass is celebrated daily in the St. Joseph Chapel at 11 a.m.* Due to capacity limits, guests and visitors are welcome to attend daily Mass only on Friday. Please know however, that guests and visitors are welcome to attend each All-School Mass in the gymnasium.
All School Masses will take place on the dates below and most will begin at 9:45 a.m. in the gymnasium unless otherwise noted.
* On days when trimester exams are given, daily Mass will be celebrated at 8 a.m.
All-School Masses
| 2025 | 2026 |
| Friday, August 15 Assumption of the Blessed Virgin Mary, 9:45 am |
Wednesday, January 28 Catholic Schools Week, 9:45 am |
| Friday, August 29 Grandparents’ Day, 8:45 am |
Wednesday, February 18 Ash Wednesday, 9:45 am |
| Friday, October 3 Feast of St. Theodore Guerin, 9:45 am |
Thursday, March 19 Feast of St. Joseph, 9:45 am |
| Tuesday, November 25 Conclusion of Because We Are Grateful (BWAG), 2 pm |
Tuesday, April 21 All-School Mass, 9:45 am |
| Monday, December 8 Feast of the Immaculate Conception, 9:45 am |
Friday, May 1 All School Mass and May Crowning, 9:45 am |
| Friday, December 19 Alumni Mass and Breakfast, 10:45 am |
Thursday, May 21 Class of 2026 Senior Mass, 9:45 am |
Sacraments at Guerin Catholic High School
Reconciliation
The Sacrament of Reconciliation is typically offered in the chapel for students, faculty, and staff after school on Tuesdays and Thursdays (3:45-4:30 PM) and Fridays (11:45-1:20 PM) during lunch.