Complete school year calendar for Islip UFSD, Suffolk County. Includes all holidays, breaks, half days, and important dates from September 2026 through June 2027.
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | September 1, 2026 (Tue) | 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 |
| Election Day | November 3, 2026 (Tue) | Supt. Conf. Day |
| Veterans Day | November 11, 2026 (Wed) | No School |
| Thanksgiving Recess | November 25–27, 2026 (Wed–Fri) | No School |
| Winter Recess | Dec 23, 2026 – Jan 1, 2027 | No School |
| MLK Day | January 18, 2027 (Mon) | No School |
| Mid-Winter Recess | February 15–19, 2027 | No School |
| Eid al-Fitr | March 9, 2027 (Tue) | Supt. Conf. Day |
| Spring Recess (Easter) | March 25–29, 2027 | No School |
| Spring Recess (Passover) | April 19–23, 2027 | No School |
| Eid al-Adha | May 17, 2027 (Mon) | Supt. Conf. Day |
| Memorial Day Weekend | May 28 – Jun 1, 2027 | No School |
| Juneteenth (Observed) | June 18, 2027 (Fri) | No School |
| Last Day of School | June 25, 2027 (Fri) | School Closes |
Complete month-by-month calendar from September 2026 to June 2027. Every day is color-coded so you can see school days, holidays, and breaks at a glance.
The Islip Union Free School District 2026-2027 runs from September 1, 2026 to June 25, 2027. Approved January 13, 2026.
Two spring recesses: Easter (March 25-29) and Passover (April 19-23). Eid al-Fitr (March 9) and Eid al-Adha (May 17) are conference days.
Tuesday, September 1, 2026.
Friday, June 25, 2027.
December 23, 2026 through January 1, 2027.
March 29 – April 19, 2027.
February 15-19, 2027.
182 student days. Approved January 13, 2026.
March 30, 2027 falls within spring recess.
Data Source: This calendar is based on projected dates derived from historical Islip Union Free School District scheduling patterns.
Disclaimer: This website is not affiliated with, endorsed by, or connected to Islip Union Free School District or the New York State Education Department (NYSED). For the most current and official calendar, please visit www.islipufsd.org.
Dates are subject to change. Religious holiday dates are approximate and based on projected lunar calendar calculations.
Last updated: March 13, 2026