Official Mamaroneck 2025-2026 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 2025 through June 2026. 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, 2025 (Tue) | School Opens |
| Rosh Hashanah | September 23, 2025 - September 24, 2025 | No School |
| Yom Kippur | October 2, 2025 (Thu) | No School |
| Columbus Day | October 13, 2025 (Mon) | No School |
| Veterans Day | November 11, 2025 (Tue) | No School |
| Thanksgiving Recess | November 27, 2025 - November 28, 2025 | No School |
| Holiday Recess | December 22, 2025 - December 31, 2025 | No School |
| Martin Luther King Jr. Day | January 19, 2026 (Mon) | No School |
| Midwinter Recess | February 16, 2026 - February 20, 2026 | No School |
| Spring Recess | April 1, 2026 - April 3, 2026 | No School |
| Memorial Day | May 25, 2026 (Mon) | No School |
| Juneteenth | June 19, 2026 (Fri) | No School |
| Last Day of School | June 26, 2026 (Fri) | School Closes |
View the full 2025-2026 school year by month.
Mamaroneck Union Free School District is listed here with official 2025-2026 calendar data. The student year starts on Tuesday, September 2, 2025 and ends on Friday, June 26, 2026.
The main multi-day closure blocks are Rosh Hashanah (Tuesday, September 23, 2025 through Wednesday, September 24, 2025), Thanksgiving Recess (Thursday, November 27, 2025 through Friday, November 28, 2025), Holiday Recess (Monday, December 22, 2025 through Wednesday, December 31, 2025), Mid-Winter Recess (Monday, February 16, 2026 through Friday, February 20, 2026), Spring Recess (Wednesday, April 1, 2026 through Friday, April 3, 2026).
Single-day closures and important calendar items include Yom Kippur (Thursday, October 2, 2025), Columbus Day (Monday, October 13, 2025), Superintendent's Conference Day (Tuesday, November 4, 2025), Veterans Day (Tuesday, November 11, 2025), Martin Luther King Jr. Day (Monday, January 19, 2026), Superintendent's Conference Day (Friday, March 20, 2026), Memorial Day (Monday, May 25, 2026), Juneteenth (Friday, June 19, 2026).
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