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Grossmont Union High 2026-2027 School Calendar Holidays, breaks, and no school days

El Cajon, CA

Next no-school day
Wednesday
November 11
Veterans Day
No-school days
31 weekdays
6 single days + 25 break days
First day
Wednesday
August 12
2026
Last day
Thursday
June 3
2027
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School year at a glance

First Day Last Day No School Break Holiday School Day

Breaks and holidays

Is there school on Veterans Day?

Wed, Nov 11
No school

When is Thanksgiving break 2026?

Nov 23–27
9 days off with weekends

When is winter break 2026?

Dec 21 – Jan 1
16 days off with weekends

Is there school on Martin Luther King Jr. Day?

Mon, Jan 18
No school

Is there school on Presidents' Day?

Mon, Feb 15
No school

When is spring break 2027?

Mar 22 – Apr 2
16 days off with weekends

All 2026-2027 dates

No-school days, breaks and schedule changes, month by month.

July 2026

  • Independence Day Friday, July 3rd No school

August 2026

  • Professional Development Day Friday, August 7th No school
  • Professional Development Day Monday, August 10th No school
  • Professional Development Day Tuesday, August 11th No school
  • First Day of School Wednesday, August 12th First day

September 2026

  • Labor Day Monday, September 7th · Federal holiday No school

October 2026

  • Columbus Day Monday, October 12th · Not on the school calendar Federal holiday

November 2026

  • Veterans Day Wednesday, November 11th · Federal holiday No school
  • Thanksgiving Break Monday, November 23rd – Friday, November 27th · 5 school days off · Includes Thanksgiving Day (federal holiday), Day after Thanksgiving (state holiday) Break

December 2026

  • Winter Break Monday, December 21st – Friday, January 1st · 10 school days off · Includes Christmas Day (federal holiday), New Year's Day (federal holiday) Break

January 2027

  • Martin Luther King Jr. Day Monday, January 18th · Federal holiday No school

February 2027

  • Lincoln Day Monday, February 8th No school
  • Presidents' Day Monday, February 15th · Federal holiday No school

March 2027

  • Spring Break Monday, March 22nd – Friday, April 2nd · 10 school days off · Includes Farmworkers Day (state holiday) Break

May 2027

  • Memorial Day Monday, May 31st · Federal holiday No school

June 2027

  • Last Day of School Thursday, June 3rd Last day
  • Juneteenth Friday, June 18th No school

Schools using this calendar

15 schools follow the Grossmont Union High calendar.

Browse all schools (A–Z)
C
Chaparral High
E
El Cajon Valley HighEl Capitan HighElite Academy
G
Granite Hills HighGrossmont HighGrossmont Middle College High
I
Idea Center
M
Merit AcademyMonte Vista HighMount Miguel High
R
Reach Academy
S
Santana High
V
Valhalla High
W
West Hills High

Frequently Asked Questions

When is the first and last day of school at Grossmont Union High in 2026-2027?
The first day of school at Grossmont Union High is Wednesday, August 12, 2026. The last day of school is Thursday, June 3, 2027. That's a school year of about 42 weeks.
How many school days are in the 2026-2027 school year at Grossmont Union High?
About 181 school days: the weekdays from the first day to the last day, minus days off.
How many days off does Grossmont Union High have in 2026-2027?
About 31 weekdays with no school, not counting weekends or summer. That's 25 weekdays of breaks plus six single days off. There are also five long weekends, where a Friday or Monday off joins the weekend.
What is the longest stretch of school without a day off?
Forty-six school days in a row (about nine weeks), from Tuesday, September 8 to Tuesday, November 10.

Simple Schedule is not affiliated with Grossmont Union High. Confirm important dates with the district or your school.

Source: Grossmont Union High.

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