August
2025
2025-2026 School Calendar
Aug
1
Fri
Cross Country Team Workout Retreat
8/1/2025
–
8/4/2025 (Crestline, CA, USA)
2025-2026 School Calendar
Senior Portraits (set-up/take down AUD)
8 AM
–
2 PM
2025-2026 School Calendar
Admin Meeting
9 AM
–
12 PM
2025-2026 School Calendar
SGMHS Office Hours
9 AM
–
4 PM
2025-2026 School Calendar
Senior Portraits (AUD)
10 AM
–
12 PM
2025-2026 School Calendar
Aug
2
Sat
Cross Country Team Workout Retreat
8/1/2025
–
8/4/2025 (Crestline, CA, USA)
2025-2026 School Calendar
Aug
3
Sun
Cross Country Team Workout Retreat
8/1/2025
–
8/4/2025 (Crestline, CA, USA)
2025-2026 School Calendar
Aug
4
Mon
Cross Country Team Workout Retreat
8/1/2025
–
8/4/2025 (Crestline, CA, USA)
2025-2026 School Calendar
Faculty & Staff Business
9 AM
–
3 PM
2025-2026 School Calendar
SGMHS Office Hours
9 AM
–
4 PM
2025-2026 School Calendar
Varsity Volleyball Practices Begin
3 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices Begin
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
5
Tue
Faculty Meeting
9 AM
–
12 PM
2025-2026 School Calendar
SGMHS Office Hours
9 AM
–
4 PM
2025-2026 School Calendar
Faculty/Staff lunch
12:15 PM
–
1 PM
2025-2026 School Calendar
Faculty/Staff Retreat
1 PM
–
3:45 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
6
Wed
Teacher C3
8 AM
–
3 PM (Bishop Amat Memorial High School, 14301 Fairgrove Ave, La Puente, CA 91746, USA)
2025-2026 School Calendar
ADLA Beginning of the School Year Mass for Principals & Pastors
8:15 AM
–
12:15 PM (Bishop Amat Memorial High School14301 Fairgrove Ave, La Puente, CA 91746, United States)
2025-2026 School Calendar
SGMHS Office Hours
9 AM
–
4 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
Cross Country Practices Begin
4:30 PM
–
6 PM (SGMHS Field)
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Parent Board Meeting
7:30 PM
–
8 PM
2025-2026 School Calendar
Aug
7
Thu
ASB Planning Activity
9 AM
–
3:30 PM
2025-2026 School Calendar
SGMHS Office Hours
9 AM
–
4 PM
2025-2026 School Calendar
AD Council
3 PM
–
4 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
UC application workshop
4 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
8
Fri
SGMHS Office Hours
9 AM
–
4 PM
2025-2026 School Calendar
Veritas Retreat
9 AM
–
3:30 PM
2025-2026 School Calendar
UC App Workshop
2:45 PM
–
3:45 PM
2025-2026 School Calendar
Used Books/Uniform Sale & Ice Cream Social
3 PM
–
5 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
9
Sat
Alumni Volleyball Game
9 AM
–
12 PM (SGMHS Gym)
2025-2026 School Calendar
Aug
10
Sun
School Beautification
10 AM
–
2 PM
2025-2026 School Calendar
Aug
11
Mon
SGMHS Office Hours
9 AM
–
4 PM
2025-2026 School Calendar
Student Council Activity
9 AM
–
3:30 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
Admin mtg
3:15 PM
–
4:15 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
12
Tue
Academic/Discipline mtg
9 AM
–
10 AM
2025-2026 School Calendar
Marketing Ambassador Planning Meeting
9 AM
–
3:30 PM
2025-2026 School Calendar
SGMHS Office Hours
9 AM
–
4 PM
2025-2026 School Calendar
Emergency Drill
11 AM
–
12 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
College App Workshop
3:30 PM
–
4:30 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Volleyball Team Parent Meeting
6 PM
–
7 PM
2025-2026 School Calendar
Aug
13
Wed
SMART Team Training Day
8:30 AM
–
2:30 PM
2025-2026 School Calendar
SGMHS Office Hours
9 AM
–
4 PM
2025-2026 School Calendar
WIGO - Faculty/Staff Meeting
2:30 PM
–
4 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Mission Family Mass & Potluck
5 PM
–
7 PM
2025-2026 School Calendar
Athletic Booster Club Meeting
6:30 PM
–
7:30 PM
2025-2026 School Calendar
Aug
14
Thu
New Student Orientation
8:30 AM
–
2:30 PM
2025-2026 School Calendar
SGMHS Office Hours
9 AM
–
4 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
15
Fri
First day of School
2025-2026 School Calendar
Formal Uniform
2025-2026 School Calendar
First Day of School / special schedule
8:30 AM
–
2 PM
2025-2026 School Calendar
Mass of the Assumption of Mary
10 AM
–
11 AM
2025-2026 School Calendar
Frosh Soph Volleyball Game at Calvary Baptist
4:45 PM
–
6 PM (Calvary Baptist Schools, 2990 Damien Ave, La Verne, CA 91750, USA)
2025-2026 School Calendar
Varsity Volleyball Game at Calvary Baptist
6 PM
–
8 PM (Calvary Baptist Schools, 2990 Damien Ave, La Verne, CA 91750, USA)
2025-2026 School Calendar
Aug
18
Mon
Welcome Spirit Week
8/18/2025
–
8/22/2025
2025-2026 School Calendar
Parent Board Welcome Lunch delivery AM
7:30 AM
–
8:30 AM
2025-2026 School Calendar
Pia Day 2:45pm Dismissal
8:30 AM
–
2:45 PM
2025-2026 School Calendar
Cross Country Practice
3:30 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Game at SGMHS vs Pilibos
4 PM
–
5 PM
2025-2026 School Calendar
Varsity Volleyball Game at SGMHS vs Pilibos
5 PM
–
7 PM
2025-2026 School Calendar
Aug
19
Tue
Welcome Spirit Week
8/18/2025
–
8/22/2025
2025-2026 School Calendar
Dominic Day 2:45pm Dismissal
8:30 AM
–
2:45 PM
2025-2026 School Calendar
Freshmen/Sophomore sister lunch (AUD)
11:10 AM
–
11:50 AM
2025-2026 School Calendar
Varsity Volleyball Practice
3 PM
–
5 PM
2025-2026 School Calendar
Cross Country Practice
3:30 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practice
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
20
Wed
Welcome Spirit Week
8/18/2025
–
8/22/2025
2025-2026 School Calendar
Gabe Day 2:45pm Dismissal
8:30 AM
–
2:20 PM
2025-2026 School Calendar
Freshmen/Junior Welcome Lunch
11:30 AM
–
12:10 PM
2025-2026 School Calendar
WIGO - Faculty/Staff Meeting
2:30 PM
–
4 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
WIGO (CPLA intro tbd)
3 PM
–
4 PM
2025-2026 School Calendar
Cross Country Practice
3:30 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Visual & Performing Arts Booster Club Meeting
6:30 PM
–
7:30 PM
2025-2026 School Calendar
Aug
21
Thu
Welcome Spirit Week
8/18/2025
–
8/22/2025
2025-2026 School Calendar
AMC Day 2:45pm Dismissal
8:30 AM
–
2:45 PM
2025-2026 School Calendar
Freshmen/Senior Welcome Activity
11:10 AM
–
11:50 AM
2025-2026 School Calendar
Advisement: Counseling
1:45 PM
–
3 PM
2025-2026 School Calendar
Varsity Volleyball Practice
3 PM
–
5 PM
2025-2026 School Calendar
Cross Country Practice
3:30 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practice
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
22
Fri
Welcome Spirit Week
8/18/2025
–
8/22/2025
2025-2026 School Calendar
Special Schedule: Welcome Week Assembly & Picnic 2:00pm Dismissal
8:30 AM
–
2 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
Cross Country Practice
3:30 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
23
Sat
Varsity Volleyball Tournament at Montebello HS
8 AM
–
3 PM (Montebello High School, 2100 W Cleveland Ave, Montebello, CA 90640, USA)
2025-2026 School Calendar
Aug
25
Mon
Plaid Day 2:45pm Dismissal
8:30 AM
–
2:45 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
Cross Country Practice
3:30 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Parish meeting @ HS - aud
6:30 PM
–
9 PM
2025-2026 School Calendar
Aug
26
Tue
Dominic Day 2:45pm Dismissal
8:30 AM
–
2:45 PM
2025-2026 School Calendar
Cross Country Practice
3:30 PM
–
5 PM
2025-2026 School Calendar
Varsity Volleyball at SGMHS vs Southwestern Academy
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
27
Wed
NHS Applications Due
2025-2026 School Calendar
Gabe Day 2:20pm Dismissal
8:30 AM
–
2:20 PM
2025-2026 School Calendar
WIGO - Faculty/Staff Meeting
2:30 PM
–
4 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
WIGO (CPLA intro tbd)
3 PM
–
4 PM
2025-2026 School Calendar
Cross Country Practice
3:30 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Senior Parent Mtg: College Planning
6 PM
–
7 PM
2025-2026 School Calendar
Aug
28
Thu
Club Board Applications Due
2025-2026 School Calendar
Freshmen Class Board applications due
2025-2026 School Calendar
AMC Day 2:45pm Dismissal
8:30 AM
–
2:45 PM
2025-2026 School Calendar
Cross Country / Softball Info. Mtg (rm 122)
12 PM
–
12:30 PM
2025-2026 School Calendar
Empowering God's Children Assemby
1:15 PM
–
2:45 PM
2025-2026 School Calendar
Cross Country Practice
3:30 PM
–
5 PM
2025-2026 School Calendar
Frosh Soph Volleyball Game at St. Pius X (League Opener)
4 PM
–
5 PM (St. Pius X - St. Matthias Academy (PMA), 7851 Gardendale St, Downey, CA 90242, USA)
2025-2026 School Calendar
Varsity Volleyball Game at St. Pius X (League Opener)
5:15 PM
–
7:15 PM (St. Pius X - St. Matthias Academy (PMA), 7851 Gardendale St, Downey, CA 90242, USA)
2025-2026 School Calendar
Aug
29
Fri
CSF Applications Due
2025-2026 School Calendar
Pia Day 2:45pm Dismissal
8:30 AM
–
2:45 PM
2025-2026 School Calendar
Lunch: Freshmen Class Board Candidate Campaign Mtg.
11:30 AM
–
12:30 PM
2025-2026 School Calendar
Varsity Volleyball Practices
3 PM
–
5 PM
2025-2026 School Calendar
Cross Country Practice
3:30 PM
–
5 PM
2025-2026 School Calendar
VB Game @ SGMHS
3:30 PM
–
6:30 PM
2025-2026 School Calendar
Frosh Soph Volleyball Practices
4:30 PM
–
6:30 PM
2025-2026 School Calendar
Aug
30
Sat
Hold - Cross Country Cool Breeze Invitational
6 PM
–
9 PM (Pomona Fairplex, Fairplex Dr, Pomona, CA 91768, USA)
2025-2026 School Calendar