- School starts Tuesday, Aug. 10, 2027 and ends Thursday, June 1, 2028.
- Thanksgiving break: Nov. 22 to 26. Students are out Saturday, Nov. 20 to Sunday, Nov. 28, back Monday, Nov. 29.
- Winter break: Dec. 24 to Jan. 7. Students are out Thursday, Dec. 23 to Monday, Jan. 10, back Tuesday, Jan. 11.
- Spring break: April 3 to 7. Students are out Friday, March 31 to Sunday, April 9, back Monday, April 10.
- The district's instructional calendar prints no early release or minimum days.
The SDUHSD 2027-28 calendar
This is the district's own calendar, as SDUHSD publishes it. Tap it to open the full-size image.
Add the SDUHSD calendar to your phone
Pick a file. Each one is an all-day event per day off, and a break is one event across all its days.
On an iPhone
Tap a file above, then tap Add All. The dates go into the calendar you choose.
In Google Calendar
On a computer, open Google Calendar, then Settings, then Import & export. Choose the file and the calendar to add it to. The dates show up on your Android phone too.
In Outlook
Open the downloaded file, or in Outlook on the web go to Add calendar, then Upload from file.
These files are a copy of the calendar today. If the district changes a date, download the file again.
SDUHSD vacations and holidays, 2027-28
Every day with no school for students, from the first day to the last: 11 entries and 33 weekdays in all.
| Day off | Dates | Days of the week | School days off |
|---|---|---|---|
| Labor Day Holiday | Sept. 6 | Mon | 1 |
| Veterans Day Holiday | Nov. 11 | Thu | 1 |
| Thanksgiving break Break | Nov. 22 to 26 | Mon to Fri | 5 |
| Teacher prep day (no school) Staff day | Dec. 23 | Thu | 1 |
| Winter break Break | Dec. 24 to Jan. 7 | Fri to Fri | 11 |
| Staff inservice day (no school) Staff day | Jan. 10 | Mon | 1 |
| Martin Luther King Jr. Day Holiday | Jan. 17 | Mon | 1 |
| Presidents Day break Break | Feb. 21 to 25 | Mon to Fri | 5 |
| Cesar Chavez Day (Farmworkers Day) Holiday | March 31 | Fri | 1 |
| Spring break Break | April 3 to 7 | Mon to Fri | 5 |
| Memorial Day Holiday | May 29 | Mon | 1 |
SDUHSD early release days
The district's instructional calendar prints no early release or minimum days.
Schools can still send their own early dismissal notices, so watch for those.
Calendar notes: what to plan around
Long weekends and breaks
Every stretch of three or more days with no school, counting weekends.
- 3-day weekend: Saturday, Sept. 4 to Monday, Sept. 6. Labor Day. Back Tuesday, Sept. 7.
- 9 days off in a row: Saturday, Nov. 20 to Sunday, Nov. 28. Thanksgiving break. Back Monday, Nov. 29.
- 19 days off in a row: Thursday, Dec. 23 to Monday, Jan. 10. Teacher prep day (no school), winter break and staff inservice day (no school). Back Tuesday, Jan. 11.
- 3-day weekend: Saturday, Jan. 15 to Monday, Jan. 17. Martin Luther King Jr. Day. Back Tuesday, Jan. 18.
- 9 days off in a row: Saturday, Feb. 19 to Sunday, Feb. 27. Presidents Day break. Back Monday, Feb. 28.
- 10 days off in a row: Friday, March 31 to Sunday, April 9. Cesar Chavez Day (Farmworkers Day) and spring break. Back Monday, April 10.
- 3-day weekend: Saturday, May 27 to Monday, May 29. Memorial Day. Back Tuesday, May 30.
Weeks with fewer than five school days
Eight weeks have fewer than five school days, and five weeks have none at all.
| Week of | School days | Why |
|---|---|---|
| Aug. 9 | 4 | Before the first day |
| Sept. 6 | 4 | Labor Day |
| Nov. 8 | 4 | Veterans Day |
| Nov. 22 | 0 | Thanksgiving break |
| Dec. 20 | 3 | Teacher prep day (no school) and winter break |
| Dec. 27 | 0 | Winter break |
| Jan. 3 | 0 | Winter break |
| Jan. 10 | 4 | Staff inservice day (no school) |
| Jan. 17 | 4 | Martin Luther King Jr. Day |
| Feb. 21 | 0 | Presidents Day break |
| March 27 | 4 | Cesar Chavez Day (Farmworkers Day) |
| April 3 | 0 | Spring break |
| May 29 | 3 | Memorial Day and after the last day |
Teacher workdays: no school for students
Two of the days off are staff days. Teachers work; students stay home. Plan child care as you would for a holiday.
- Thursday, Dec. 23: teacher prep day (no school)
- Monday, Jan. 10: staff inservice day (no school)
Makeup days
The district calendar prints no makeup days. If school closes for weather, the district announces how the day is made up.
Also worth knowing
- School is open on a federal holiday: Columbus Day (Monday, Oct. 11). Banks, post offices and many offices close; school does not.
- The district calendar prints no parent conference days.
- The district calendar prints no testing dates.
First and last day of school
The first day of school is Tuesday, Aug. 10, 2027. The last day is Thursday, June 1, 2028.
The district prints 180 instructional days across the quarters. Our count of the calendar matches.
Grading periods
The calendar prints each quarter's student days; semesters end Dec. 22 and June 1.
| Period | Dates | School days |
|---|---|---|
| 1st quarter | Aug. 10 to Oct. 12 | 45 |
| 2nd quarter | Oct. 13 to Dec. 22 | 45 |
| 3rd quarter | Jan. 11 to March 21 | 45 |
| 4th quarter | March 22 to June 1 | 45 |
What the district notes
- The calendar counts 180 student days: 16 in August, 21 in September, 21 in October, 16 in November, 16 in December, 14 in January, 16 in February, 22 in March, 15 in April, 22 in May and 1 in June.
- Teachers have a prep day on Aug. 3, staff inservice days on Aug. 4 and 5 and a prep day on Aug. 6, and Aug. 9 is a teacher non-work day, before school starts on Tuesday, Aug. 10.
- Students are off from Thursday, Dec. 23, through Monday, Jan. 10: a teacher prep day, winter break and a staff inservice day. The second semester starts Tuesday, Jan. 11.
Common questions
When does SDUHSD start in 2027?
The first day of school for San Dieguito Union High School District is Tuesday, Aug. 10, 2027.
When is the last day of school for SDUHSD in 2028?
The last day for students is Thursday, June 1, 2028.
When is winter break for SDUHSD?
Winter break runs Friday, Dec. 24 to Friday, Jan. 7. Counting weekends and the days next to it, students are out Thursday, Dec. 23 to Monday, Jan. 10 and go back Tuesday, Jan. 11.
When is spring break for SDUHSD?
Spring break runs Monday, April 3 to Friday, April 7. Counting weekends and the days next to it, students are out Friday, March 31 to Sunday, April 9 and go back Monday, April 10.
When is Thanksgiving break for SDUHSD?
Thanksgiving break runs Monday, Nov. 22 to Friday, Nov. 26. Counting weekends, students are out Saturday, Nov. 20 to Sunday, Nov. 28 and go back Monday, Nov. 29.
Does SDUHSD have early release days in 2027-28?
The district's instructional calendar prints no early release or minimum days.
How do I put the SDUHSD calendar on my phone?
Download one of the .ics files on this page. On an iPhone, open it and tap Add All. On Android or a computer, import it into Google Calendar or Outlook.
How we checked these dates
We read every date off the district's own calendar twice: once from the PDF's text and once from the image, cell by cell against its legend. Then we checked our count of every school day against the day counts the district prints. They match.
Every weekday on this page matches its date. If the district changes its calendar, its page is the final word.
Where each date is on the district's calendar
- First day, Aug. 10: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, August 2027 grid, 10 in green (legend "First day of Semester"); list "August 10 First day of School"; heading "August 10, 2027 through June 1, 2028".
- Last day, June 1: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, June 2028 grid, 1 outlined (legend "End of Quarter/Semester"); list "June (1 Student Day)", "June 1 2nd Semester/Term Ends"; heading "August 10, 2027 through June 1, 2028".
- Labor Day, Sept. 6: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, September 2027 grid, 6 in dark gray (legend "Holidays/Breaks/No School"); list "September 6 Labor Day".
- Veterans Day, Nov. 11: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, November 2027 grid, 11 in dark gray; list "November 11 Veterans Day".
- Thanksgiving break, Nov. 22 to 26: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, November 2027 grid, 22 to 26 in dark gray; list "November 22-26 Fall Break".
- Teacher prep day (no school), Dec. 23: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, December 2027 grid, 23 in blue; list "December 22 1st Semester/Term Ends", "December 23 Teacher Prep Day".
- Winter break, Dec. 24 to Jan. 7: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, December 2027 grid, 24 and 27 to 31 in dark gray; January 2028 grid, 3 to 7 in dark gray; list "December 24-31 Winter Break", "January 3-7 Winter Break".
- Staff inservice day (no school), Jan. 10: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, January 2028 grid, 10 in light blue; list "January 10 Staff Inservice Day", "January 11 First day for 2nd Semester".
- Martin Luther King Jr. Day, Jan. 17: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, January 2028 grid, 17 in dark gray; list "January 17 M.L. King Jr. Day".
- Presidents Day break, Feb. 21 to 25: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, February 2028 grid, 21 to 25 in dark gray; list "February 21 -25 Presidents' Break".
- Cesar Chavez Day (Farmworkers Day), March 31: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, March 2028 grid, 31 in dark gray; list "March 31 Farmworkers Day".
- Spring break, April 3 to 7: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, April 2028 grid, 3 to 7 in dark gray; list "April 3-7 Spring Break".
- Memorial Day, May 29: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, May 2028 grid, 29 in dark gray; list "May 29 Memorial Day".
- 1st quarter: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, "Q1: August 10 - October 12 45"; list "October 12 1st Quarter Ends"; October 2027 grid, 12 outlined.
- 2nd quarter: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, "Q2: October 13 - December 22 45"; list "December 22 1st Semester/Term Ends"; December 2027 grid, 22 outlined.
- 3rd quarter: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, list "March 21 3rd Quarter Ends"; March 2028 grid, 21 outlined; "Q3: January 11- March 22 45" (45 days runs Jan. 11 to March 21).
- 4th quarter: San Dieguito Union High School District Instructional Calendar 2027-28 (Google Sheet linked from the Calendars page as "2027-2028", saved as PDF), page 1, list "June 1 2nd Semester/Term Ends"; June 2028 grid, 1 outlined; "Q4: March 23 - June 2 45" (45 days runs March 22 to June 1).