Official Mamaroneck 2026-2027 school calendar with holidays, breaks, PDF, and calendar sync. Complete school year calendar for Mamaroneck UFSD, covering Mamaroneck and Larchmont. Includes all holidays, breaks, half days, and important dates from September 2026 through June 2027. Dates are manually collected and screened from district-published calendar materials. Printable PDF and Google/Apple Calendar sync options are available below. Updated March 17, 2026.
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | September 2, 2026 (Wed) | School Opens |
| Labor Day | September 7, 2026 (Mon) | No School |
| Yom Kippur | September 21, 2026 (Mon) | No School |
| Columbus Day | October 12, 2026 (Mon) | No School |
| Veterans Day | November 11, 2026 (Wed) | No School |
| Thanksgiving Recess | November 26, 2026 - November 27, 2026 | No School |
| Holiday Recess | December 23, 2026 - January 1, 2027 | No School |
| Martin Luther King Jr. Day | January 18, 2027 (Mon) | No School |
| Midwinter Recess | February 15, 2027 - February 19, 2027 | No School |
| Spring Recess | March 22, 2027 - March 26, 2027 | No School |
| Holiday Recess (Passover) | April 22, 2027 - April 23, 2027 | No School |
| Memorial Day | May 31, 2027 (Mon) | No School |
| Juneteenth (Observed) | June 18, 2027 (Fri) | No School |
| Last Day of School | June 25, 2027 (Fri) | School Closes |
View the full 2026-2027 school year by month.
Mamaroneck Union Free School District is listed here with official 2026-2027 calendar data. The student year starts on Wednesday, September 2, 2026 and ends on Friday, June 25, 2027.
The main multi-day closure blocks are Thanksgiving Recess (Thursday, November 26, 2026 through Friday, November 27, 2026), Holiday Recess (Wednesday, December 23, 2026 through Friday, January 1, 2027), Mid-Winter Recess (Monday, February 15, 2027 through Friday, February 19, 2027), Spring Recess (Monday, March 22, 2027 through Friday, March 26, 2027), Holiday Recess (Passover) (Thursday, April 22, 2027 through Friday, April 23, 2027).
Single-day closures and important calendar items include Labor Day (Monday, September 7, 2026), Yom Kippur (Monday, September 21, 2026), Columbus Day (Monday, October 12, 2026), Veterans Day (Wednesday, November 11, 2026), Rev. Dr. Martin Luther King Jr. Day (Monday, January 18, 2027), Memorial Day (Monday, May 31, 2027), Juneteenth (Observed) (Friday, June 18, 2027).
Data source & handling: Official calendar from Mamaroneck Union Free School District (mamkschools.org). We manually collect and screen dates from district materials, then organize them into key dates, printable PDF, and calendar sync.
Disclaimer: This site is not affiliated with Mamaroneck Union Free School District or NYSED. Official calendars can change - always check mamkschools.org before making plans.
Last updated: March 17, 2026