Mater Dei High School
September 2026

Sunday Monday Tuesday Wednesday Thursday Friday Saturday
30
31
1
Back to School Night: Freshmen & Sophomores (MD)
2026-2027
Administrative Board Meeting 9:30 AM (MCR)
2026-2027
V Boys Water Polo @ Westlake 5:15 PM (Westlake)
2026-2027
V Girls Volleyball @ Millikan 5:45 PM (Millikan)
2026-2027
2
International Student Connection during Both Lunches (Library/LCC/Rotunda)
2026-2027
3
Diocesan DPA Meeting 8:30 AM – 2 PM (Pastoral Center - 4A)
2026-2027
PAC Project Committee Weekly Update 8:30 AM – 9:30 AM (MCR)
2026-2027
V Girls Volleyball vs Mira Costa 5:45 PM (MAC)
2026-2027
4
Fall Rally (MAC)
2026-2027
V Girls Volleyball @ Dave Mohs Tournament (Edison)
2026-2027
V Boys Water Polo vs Crean Lutheran 5 PM (MD)
2026-2027
V Football vs Valor Christian, CO 7 PM (SA Bowl)
2026-2027
5
V Cross Country @ Lowell Invitational (Golden Gate Park)
2026-2027
V Girls Volleyball @ Dave Mohs Tournament (Edison)
2026-2027
6
7
No School - Labor Day
2026-2027
8
Back to School Night: Juniors & Seniors (MD)
2026-2027
Club Rush during Both Lunches (Shamrock Plaza)
2026-2027
Administrative Board Meeting 9:30 AM (MCR)
2026-2027
Lunch & Learn: Parent Education Series 12 PM – 12:45 PM (Virtual)
2026-2027
V Girls Flag Football vs Orange Lutheran 6 PM (MD)
2026-2027
9
Club Rush during Both Lunches (Shamrock Plaza)
2026-2027
10
Service Fair during Both Lunches (Shamrock Plaza)
2026-2027
PAC Project Committee Weekly Update 8:30 AM – 9:30 AM (MCR)
2026-2027
Senior Parent Webinar 12 PM – 1 PM (Online)
2026-2027
V Girls Volleyball vs Cathedral Catholic 5:45 PM (MAC)
2026-2027
11
No School - Diocesan Convocation
2026-2027
Advanced Choirs Retreat (Cedar Lake, Big Bear)
2026-2027
V Boys Water Polo @ Santa Barbara Tournament (Dos Pueblos)
2026-2027
Diocesan Educators Convocation 8 AM – 12 PM (TBD)
2026-2027
V Football vs Corona Centennial 7 PM (SA Bowl)
2026-2027
12
Advanced Choirs Retreat (Cedar Lake, Big Bear)
2026-2027
SAT Testing (TBD)
2026-2027
V Boys Water Polo @ Santa Barbara Tournament (Dos Pueblos)
2026-2027
Class of 2006 Reunion 5 PM – 11 PM (LeVecke & Shamrock Plaza)
2026-2027
13
Advanced Choirs Retreat (Cedar Lake, Big Bear)
2026-2027
14
CTC Meeting 3 PM (LCC)
2026-2027
15
Administrative Board Meeting 9:30 AM (MCR)
2026-2027
V Girls Volleyball @ Torrey Pines 5:30 PM (Torrey Pines)
2026-2027
V Girls Flag Football vs JSerra 6 PM (MD)
2026-2027
16
Faculty/Staff Meeting 7:30 AM (LeVecke)
2026-2027
17
Mass of the Holy Spirit (MAC)
2026-2027
Student Wellness Activity during Both Lunches (Shamrock Plaza)
2026-2027
V Boys Water Polo @ South Coast Tournament (Newport Harbor)
2026-2027
PAC Project Committee Weekly Update 8:30 AM – 9:30 AM (MCR)
2026-2027
Diocesan Learning Support Meeting 2:45 PM – 3:30 PM (Zoom)
2026-2027
V Girls Volleyball @ Bishop Gorman 6 PM (Bishop Gorman)
2026-2027
18
Current Freshman & New Student Tailgate (SA Bowl)
2026-2027
MANE Mentor Meeting during Upper Lunch (Library)
2026-2027
V Boys Water Polo @ South Coast Tournament (Newport Harbor)
2026-2027
V Cross Country @ Woodbridge Invitational (Great Park, Irvine)
2026-2027
V Girls Volleyball @ Durango Fall Classic (Las Vegas, NV)
2026-2027
V Football vs Bishop Gorman 7 PM (SA Bowl)
2026-2027
19
Class of 1990 Reunion (LeVecke)
2026-2027
V Boys Water Polo @ South Coast Tournament (Newport Harbor)
2026-2027
V Cross Country @ Woodbridge Invitational (Great Park, Irvine)
2026-2027
V Girls Volleyball @ Durango Fall Classic (Las Vegas, NV)
2026-2027
MD Unplugged 7 PM (Grotto)
2026-2027
20
21
FLEX DAY (8 AM - 2:30 PM)
2026-2027
CSF Sign-Ups (Online)
2026-2027
NHS Sign-Ups (Online)
2026-2027
Tentative Freshman Retreat Conference (Option #2) 8 AM – 2:10 PM (MD)
2026-2027
22
CSF Sign-Ups (Online)
2026-2027
NHS Sign-Ups (Online)
2026-2027
Administrative Board Meeting 9:30 AM (MCR)
2026-2027
College Athletics Overview 6 PM – 8 PM (Library/LCC/Rotunda)
2026-2027
V Girls Flag Football @ Santa Margarita 6 PM (Santa Margarita)
2026-2027
23
CSF Sign-Ups (Online)
2026-2027
NHS Sign-Ups (Online)
2026-2027
Department Meetings 7:30 AM
2026-2027
Coffee Chat (Counseling) 9 AM – 10 AM (Library)
2026-2027
V Girls Golf @ Orange Lutheran 3:15 PM (TBD)
2026-2027
V Boys Water Polo @ Santa Margarita 5 PM (Santa Margarita)
2026-2027
24
CSF Sign-Ups (Online)
2026-2027
NHS Sign-Ups (Online)
2026-2027
PAC Project Committee Weekly Update 8:30 AM – 9:30 AM (MCR)
2026-2027
Diocesan Technology Coordinator Meeting 2:30 PM – 3:30 PM (Zoom)
2026-2027
V Girls Volleyball vs Orange Lutheran 5:45 PM (MAC)
2026-2027
Play Production: These Shining Lives 7 PM (Phillips Hall, Santa Ana College)
2026-2027
25
CSF Sign-Ups (Online)
2026-2027
Mid-Autumn Festival during Both Lunches (Shamrock Plaza)
2026-2027
NHS Sign-Ups (Online)
2026-2027
Play Production: These Shining Lives 7 PM (Phillips Hall, Santa Ana College)
2026-2027
26
College Dance Day 9 AM – 3 PM (MAC)
2026-2027
Play Production: These Shining Lives 2 PM (Phillips Hall, Santa Ana College)
2026-2027
Play Production: These Shining Lives 7 PM (Phillips Hall, Santa Ana College)
2026-2027
27
Family Mass & Breakfast 9:30 AM (MAC & LeVecke)
2026-2027
28
V Girls Golf @ JSerra 3:15 PM (TBD)
2026-2027
29
Administrative Board Meeting 9:30 AM (MCR)
2026-2027
V Girls Volleyball vs JSerra 5:45 PM (MAC)
2026-2027
V Girls Flag Football @ Orange Lutheran 6 PM (Orange Lutheran)
2026-2027
30
V Girls Golf @ Santa Margarita 3:15 PM (TBD)
2026-2027
V Boys Water Polo @ JSerra 5 PM (JSerra)
2026-2027
V Girls Volleyball @ Santa Margarita 5:45 PM (Santa Margarita)
2026-2027
1
V Girls Volleyball @ Nike Tournament of Champions (Phoenix, AZ)
2026-2027
PAC Project Committee Weekly Update 8:30 AM – 9:30 AM (MCR)
2026-2027
2
Concert Choir Retreat (TBD)
2026-2027
Grandparent's Day (Library)
2026-2027
MD Spirit Dress
2026-2027
V Girls Volleyball @ Nike Tournament of Champions (Phoenix, AZ)
2026-2027
V Boys Water Polo @ Sage Hill 5 PM (Sage Hill)
2026-2027
V Football @ Santa Margarita 7 PM (Santa Margarita)
2026-2027
3
Boo Bash (LeVecke)
2026-2027
Concert Choir Retreat (TBD)
2026-2027
SAT Testing (TBD)
2026-2027
V Cross Country @ Central Park Invitational (HB Central Park)
2026-2027
V Girls Volleyball @ Nike Tournament of Champions (Phoenix, AZ)
2026-2027