2025-2026
School Calendar
Ljubljana International School - Key Dates 2025-2026
Pre-School Events
- August 13-14: New Staff Orientation
- August 18-22: Staff Professional Development
- August 22: Open House for Parents and Students
Semester 1
Quarter 1 (August 25 - October 24, 2025)
- August 25: First Day of School
- September 1-3: Experience Days (G4-G7)
- September 3-5: Experience Days (G8-G12)
- September 8: Meet the Teachers (S20)
- September 9: Meet the Teachers (R5)
- September 11: Experience Day (GK-G3)
- September 13: Welcome Back Picnic / SAT
- September 26-29: Long Weekend (NO SCHOOL)
- October 2: MYP 3 Community Project Presentations
- October 4: SAT
- October 13-17: MAP Testing (PYP)
- October 20-24: Spirit Week / Fall Festival (23rd)
- October 24: End of Quarter 1
- October 27-31: Fall Break (NO SCHOOL)
Quarter 2 (November 4, 2025 - January 22, 2026)
- November 3: NO SCHOOL (PD for Teachers)
- November 5: Parent-Teacher Conferences (R5)
- November 6: Parent-Teacher Conferences (S20)
- November 8: SAT
- November 26-30: Slovenian Book Fair
- December 2: Winter Show (S20)
- December 4: Winter Show (R5)
- December 6: SAT
- December 12: Winter Fair
- December 22 - January 2: Winter Break (NO SCHOOL)
- January 5: NO SCHOOL (PD for Teachers)
- January 16-17: Informativa
- January 22: End of Semester 1
Semester 2
Quarter 3 (January 23 - April 7, 2026)
- January 23: Start of Semester 2
- February 2-6: Ski and Snow Trip Days
- February 6: 100 Days of School
- February 16-20: Ski Break (NO SCHOOL)
- March 10: PSAT
- March 12: International Fair
- March 14: SAT
- March 30-31: Swimming Days (R5)
- April 1-2: Swimming Days (R5)
- April 3: Good Friday (NO SCHOOL)
- April 6: Easter Monday (NO SCHOOL)
- April 7: End of Quarter 3
Quarter 4 (April 8 - June 18, 2026)
- April 24 - May 1: Spring Break (NO SCHOOL)
- April 27: National Holiday
- May 1-2: National Holidays
- May 2: SAT
- May 13: PYP Student Led Conferences & MYP/Secondary Parent-Teacher Conferences
- May 29: Long Weekend (NO SCHOOL)
- June 5: G5 PYP Graduation & G12 Graduation Ceremony
- June 6: SAT
- June 8-10: Experience Days (G3-G7)
- June 10-12: Experience Days (G8-G10)
- June 18: Last Day of School / End of Semester 2 & Q4
- June 19: Teachers Working Day
