Events

Dec 1 Mon
- Operation Happiness
  Mira Costa High School Calendar
Dec 2 Tue
- Operation Happiness
  Mira Costa High School Calendar
- SIgns of Suicide (SOS) Presentation
  Mira Costa High School Calendar
Dec 3 Wed
- 10th Grade Hearing Tests (Library)
  Mira Costa High School Calendar
- Operation Happiness
  Mira Costa High School Calendar
Dec 4 Thu
- Operation Happiness
  Mira Costa High School Calendar
Dec 5 Fri
- Operation Happiness
  Mira Costa High School Calendar
- Coffee With the Counselors 9:30 AM – 10:30 AM (Front Office)
  Mira Costa High School Calendar
- Choir Winter Concert 7 PM (Auditorium)
  Mira Costa High School Calendar
Dec 6 Sat
- LAIMUN
  Mira Costa High School Calendar
Dec 7 Sun
- LAIMUN
  Mira Costa High School Calendar
Dec 8 Mon
- ASB Dodgeball Tournament (Lunch - Athletic Complex)
  Mira Costa High School Calendar
- Operation Happiness
  Mira Costa High School Calendar
Dec 9 Tue
- ASB Dodgeball Tournament (Lunch - Athletic Complex)
  Mira Costa High School Calendar
- Drama Holiday Benefit Show
  Mira Costa High School Calendar
- Late Start
  Mira Costa High School Calendar
- Operation Happiness
  Mira Costa High School Calendar
- Band Winter Concert 7 PM (Auditorium)
  Mira Costa High School Calendar
Dec 10 Wed
- ASB Dodgeball Tournament (Lunch - Athletic Complex)
  Mira Costa High School Calendar
- Operation Happiness
  Mira Costa High School Calendar
- Club Day #2 12:47 PM – 1:17 PM (Mustang Mall)
  Mira Costa High School Calendar
Dec 11 Thu
- ASB Dodgeball Tournament (Lunch - Athletic Complex)
  Mira Costa High School Calendar
- Operation Happiness
  Mira Costa High School Calendar
Dec 12 Fri
- ASB Dodgeball Tournament (Lunch - Athletic Complex)
  Mira Costa High School Calendar
- Operation Happiness
  Mira Costa High School Calendar
- Comedy Sportz HSL Match 7 PM (Small Theater)
  Mira Costa High School Calendar
- Orchestra Winter Concert 7 PM (Auditorium)
  Mira Costa High School Calendar
Dec 15 Mon
- ASB Dodgeball Tournament (Lunch - Athletic Complex)
  Mira Costa High School Calendar
Dec 16 Tue
- ASB Dodgeball Tournament (Lunch - Athletic Complex)
  Mira Costa High School Calendar
- Link Crew Pajama Day
  Mira Costa High School Calendar
- Minimum Day
  Mira Costa High School Calendar
Dec 17 Wed
- ASB Dodgeball Tournament (Lunch - Athletic Complex)
  Mira Costa High School Calendar
- Finals - Period 1 and 2
  Mira Costa High School Calendar
Dec 18 Thu
- Finals - Period 3 and 4
  Mira Costa High School Calendar
Dec 19 Fri
- 2nd Quarter/1st Semester Ends
  Mira Costa High School Calendar
- ASB Ugly Sweater Day
  Mira Costa High School Calendar
- Finals - Period 5 and 6
  Mira Costa High School Calendar
Dec 22 Mon
- Winter Recess - No School
  Mira Costa High School Calendar
Dec 23 Tue
- Winter Recess - No School
  Mira Costa High School Calendar
Dec 24 Wed
- Winter Recess - No School
  Mira Costa High School Calendar
Dec 25 Thu
- Winter Recess - No School
  Mira Costa High School Calendar
Dec 26 Fri
- Winter Recess - No School
  Mira Costa High School Calendar
Dec 29 Mon
- Winter Recess - No School
  Mira Costa High School Calendar
Dec 30 Tue
- Winter Recess - No School
  Mira Costa High School Calendar
Dec 31 Wed
- Winter Recess - No School
  Mira Costa High School Calendar

Events in December 2025
Su	Mo	Tu	We	Th	Fr	Sa
	One event •	2 events ••	2 events ••	One event •	3 events •••	One event •
One event •	2 events ••	5 events •••	3 events •••	2 events ••	4 events •••
	One event •	3 events •••	2 events ••	One event •	3 events •••
	One event •	One event •	One event •	One event •	One event •
	One event •	One event •	One event •	One event •	One event •

Calendars

Events
District Calendar
Mira Costa High School Calendar
Manhattan Beach Middle School Calendar
District Calendar
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