Share with Parents
Help other parents find this calendar
School Open
Dismissal: 3:30 PM
Next 7 Days
August 2026
Coming Up
School Breaks
Holidays (No School)
The Castro Valley Unified School District school calendar for the 2026-27 school year runs from Wednesday, August 5, 2026 to Friday, May 28, 2027 in Castro Valley, California.
- •6 scheduled breaks and 6 holidays throughout the year
- •Spring break: Mar 29 – Apr 2
- •Winter break: Dec 21 – Jan 1
Castro Valley Unified School District starts school 359 days later than most California districts. Winter break starts 364 days later than the most common California schedule.
Download the iCal file above to sync all Castro Valley Unified School District dates with your phone or computer.
Frequently Asked Questions
Is Castro Valley Unified School District school open today?
Yes, Castro 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 Castro Valley Unified School District?
The next day off is Monday, September 7, 2026 for Labor Day.
When is the first day of school for Castro Valley Unified School District?
The first day of school for Castro Valley Unified School District in 2026-27 is Wednesday, August 5, 2026.
When is the last day of school for Castro Valley Unified School District?
The last day of school for Castro Valley Unified School District in 2026-27 is Friday, May 28, 2027.
When is spring break for Castro Valley Unified School District?
Spring break for Castro Valley Unified School District is Monday, March 29, 2027 to Friday, April 2, 2027.
When is winter break for Castro Valley Unified School District?
Winter break for Castro Valley Unified School District is Monday, December 21, 2026 to Friday, January 1, 2027.
When do students go back to school after winter break?
Students in Castro Valley Unified School District return to school after winter break on Monday, January 4, 2027. Winter break ends on Friday, January 1, 2027.
When is Thanksgiving break for Castro Valley Unified School District?
Thanksgiving break for Castro Valley Unified School District is Friday, October 9, 2026 to Monday, October 12, 2026.
How do I add Castro 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 Castro Valley, CA in?
Castro Valley, California is served by Castro 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 Castro Valley?
School in Castro Valley (Castro Valley Unified School District) starts on Wednesday, August 5, 2026 for the 2026-27 school year.
Get Calendar Alerts
We'll email you when Castro Valley Unified School District updates their calendar.
Other California Districts
Last updated: July 11, 2026
Source: Castro Valley Unified School District Official Calendar