St. Mary's County Public Schools Calendar 2025-2026
Complete holiday schedule and key dates for St. Mary's County Public Schools for the 2025-2026 academic year.
Key Dates
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | August 20, 2025 (Wed) | School Opens |
| Labor Day | September 1, 2025 (Mon) | No School |
| Student Holiday | September 19, 2025 (Fri) | No School |
| Veterans Day | November 11, 2025 (Tue) | No School |
| Thanksgiving Break | November 26, 2025 - November 28, 2025 | No School |
| Winter Break | December 22, 2025 - January 2, 2026 | No School |
| Martin Luther King Jr. Day | January 19, 2026 (Mon) | No School |
| Student Holiday | January 30, 2026 (Fri) | No School |
| Student Holiday | March 13, 2026 (Fri) | No School |
| Spring Break | March 30, 2026 - April 3, 2026 | No School |
| Memorial Day | May 25, 2026 (Mon) | No School |
| Last Day of School | June 9, 2026 (Tue) | School Closes |
Monthly Calendar MarylandSchoolCalendar.com
View the full 2025-2026 school year by month.
Calendar Notes
St. Mary's County opened on August 20, 2025, earlier than Calvert and Charles and close to Frederick's early-start pattern. The calendar is amended, and the make-up language is already reflected in the listed events: February 16 and April 6 are inclement-weather make-up days with schools and offices open. Families using an older version should not assume those are still ordinary days off.
The last days are split by program. Prekindergarten ends June 8, 2026, while K-12 ends June 9 with a two-hour early dismissal. That one-day difference matters for families with both PreK and older students, especially because the last K-12 day is already a shortened day.
St. Mary's uses repeated two-hour early dismissals through the year, including September 18, October 13 for parent conferences, October 17, November 7, December 19, February 20, March 27, April 24, and May 22. Thanksgiving Break runs November 26-28, Winter Break runs December 22-January 2, and Spring Break runs March 30-April 3, with the April 6 make-up day immediately after the listed spring break window.
- First day for students: August 20, 2025
- Last day for K-12 students: June 9, 2026
Frequently Asked Questions
Students started on Wednesday, August 20, 2025.
The last day for prekindergarten students is June 8, 2026. The last day for K-12 students is Tuesday, June 9, 2026, with a two-hour early dismissal.
Yes. February 16 and April 6, 2026 are listed as inclement weather make-up days with schools and offices open.
The first day of school for St. Mary's County Public Schools students is Wednesday, August 20, 2025. Teachers typically report a few days earlier for staff development. Parents should check the district website for any orientation sessions, supply list deadlines, or staggered-start schedules that may apply to younger grades.
St. Mary's County Public Schools Winter Break runs from December 22, 2025 through January 2, 2026 — that's 10 school days off. Including the adjacent weekends, families have up to 16 consecutive days for holiday travel and family time. Students return to class on Monday, January 5, 2026.
St. Mary's County Public Schools Thanksgiving Break is November 26, 2025 through November 28, 2025, giving students 3 weekdays off. With the surrounding weekends, families get 5 consecutive days away from school — enough time for out-of-state travel or extended family gatherings.
St. Mary's County Public Schools Spring Break is March 30, 2026 through April 3, 2026 - 5 school days off. Including the weekends on either side, families have up to 9 consecutive days for vacation planning. Note that neighboring school systems may have different Spring Break weeks, so coordinate if you have children in multiple systems.
Yes, St. Mary's County Public Schools lists 10 early release or half-days for the 2025-2026 school year: Two-hour early dismissal on September 18, 2025; Two-hour early dismissal - parent conference day on October 13, 2025; Two-hour early dismissal on October 17, 2025; Two-hour early dismissal on November 7, 2025; Two-hour early dismissal on December 19, 2025. Dismissal times on these days typically differ between elementary and secondary campuses, so check with your child's school for the exact schedule. Arrange childcare or after-school plans accordingly.
Between the first day (August 20, 2025) and last day (June 9, 2026), St. Mary's County Public Schools students have approximately 25 weekdays off for holidays, breaks, and teacher workdays. That leaves roughly 185 potential instructional days across the school year. Maryland school systems generally plan around state instructional-day requirements and local board-approved calendars.
St. Mary's County Public Schools students return to class on Monday, January 5, 2026 after Winter Break. The second semester typically begins on this date. Make sure your children's school supplies are restocked and any required forms are submitted before the return date. Check with your campus for any orientation or welcome-back activities.
Related Links
About This Calendar
Data Source: Official St. Mary's County Public Schools 2025-2026 System Operational Calendar PDF.
Disclaimer: This website is not affiliated with St. Mary's County Public Schools, the Maryland State Department of Education, or any official school system body. While we strive for accuracy, always verify important dates with the official school system website.