Official Sachem 2025-2026 school calendar with holidays, breaks, PDF, and calendar sync. Complete school year calendar for the Sachem Central School District in Suffolk County — Long Island's largest school district by enrollment, serving over 14,000 students with a unique 'Day of Holy Obligation' policy for religious holidays. 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 29, 2026.
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | September 4, 2025 (Thu) | 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 |
| Thanksgiving Recess | November 27, 2025 - November 28, 2025 | No School |
| Winter Recess | December 24, 2025 - January 2, 2026 | No School |
| Martin Luther King, Jr. | January 19, 2026 (Mon) | No School |
| Midwinter Recess | February 16, 2026 - February 20, 2026 | No School |
| Spring Recess | April 2, 2026 - April 10, 2026 | No School |
| Memorial Day | May 25, 2026 (Mon) | No School |
| Juneteenth | June 19, 2026 (Fri) | No School |
| Last Day of School | June 25, 2026 (Thu) | School Closes |
View the full 2025-2026 school year by month.
Sachem Central School District is listed here with official 2025-2026 calendar data. The student year starts on Thursday, September 4, 2025 and ends on Thursday, June 25, 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), School Closed - Winter Recess (Wednesday, December 24, 2025 through Friday, January 2, 2026), Schools Closed - Mid Winter Recess (Monday, February 16, 2026 through Friday, February 20, 2026), Schools Closed - Spring Recess (Thursday, April 2, 2026 through Friday, April 10, 2026).
Single-day closures and important calendar items include Yom Kippur (Thursday, October 2, 2025), 15 Minute Early Dismissal Drill (Friday, October 10, 2025), Columbus Day (Monday, October 13, 2025), Veteran's Day (Tuesday, November 11, 2025), Elem. Half Day - No PM Child Care (Wednesday, November 19, 2025), 1/2 day PM / No PM childcare / Thanksgiving Recess (Wednesday, November 26, 2025), Elem. Half Day - No PM Child Care (Thursday, December 4, 2025), Elem. Half Day - No PM Child Care (Tuesday, December 9, 2025), plus additional dated items in the table below.
Data source & handling: Official calendar from Sachem Central School District (sachem.edu). 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 Sachem Central School District or NYSED. Official calendars can change - always check sachem.edu before making plans.
Last updated: March 29, 2026