Share with Parents
Help other parents find this calendar
School Open
Dismissal: 3:30 PM
Next 7 Days
October 2026
Coming Up
School Breaks
Holidays (No School)
The Walnut Valley Unified School District school calendar for the 2026-27 school year runs from Monday, August 10, 2026 to Thursday, May 27, 2027 in Diamond Bar, California.
- •3 scheduled breaks and 10 holidays throughout the year
- •Spring break: Mar 26 – Apr 2
- •Winter break: Dec 18 – Jan 4
Walnut Valley Unified School District starts school 364 days later than most California districts. Winter break starts 361 days later than the most common California schedule.
Download the iCal file above to sync all Walnut Valley Unified School District dates with your phone or computer.
Frequently Asked Questions
Is Walnut Valley Unified School District school open today?
Yes, Walnut Valley Unified School District is open today. Check the weekly calendar above for upcoming school days and closures.
When is the next day off for Walnut Valley Unified School District?
The next day off is Wednesday, November 11, 2026 for Veterans Day.
When is the first day of school for Walnut Valley Unified School District?
The first day of school for Walnut Valley Unified School District in 2026-27 is Monday, August 10, 2026.
When is the last day of school for Walnut Valley Unified School District?
The last day of school for Walnut Valley Unified School District in 2026-27 is Thursday, May 27, 2027.
When is spring break for Walnut Valley Unified School District?
Spring break for Walnut Valley Unified School District is Friday, March 26, 2027 to Friday, April 2, 2027.
When is winter break for Walnut Valley Unified School District?
Winter break for Walnut Valley Unified School District is Friday, December 18, 2026 to Monday, January 4, 2027.
When do students go back to school after winter break?
Students in Walnut Valley Unified School District return to school after winter break on Tuesday, January 5, 2027. Winter break ends on Monday, January 4, 2027.
When is Thanksgiving break for Walnut Valley Unified School District?
Thanksgiving break for Walnut Valley Unified School District is Monday, November 23, 2026 to Friday, November 27, 2026.
How do I add Walnut Valley Unified School District calendar to my phone?
Click the "Add to Calendar" button at the top of this page to download the iCal (.ics) file. Then:
iPhone/iPad: Tap the downloaded file, then tap "Add All" to add events to your Calendar app.
Android: Open the file with Google Calendar, review the events, and tap "Import".
Google Calendar (web): Go to Settings → Import & Export → Select the .ics file → Import.
Outlook: Double-click the file or drag it into your Outlook calendar.
Apple Calendar (Mac): Double-click the file or go to File → Import → select the .ics file.
What school district is Diamond Bar, CA in?
Diamond Bar, California is served by Walnut Valley Unified School District. This page shows the 2026-27 school calendar including first day, last day, breaks, and holidays.
When does school start in Diamond Bar?
School in Diamond Bar (Walnut Valley Unified School District) starts on Monday, August 10, 2026 for the 2026-27 school year.
Get Calendar Alerts
We'll email you when Walnut Valley Unified School District updates their calendar.
Other California Districts
Last updated: September 13, 2026
Source: Walnut Valley Unified School District Official Calendar