When Does School Start in Thunder Bay, Ontario?
First day of school
Thursday, September 3, 2026
All 3 Thunder Bay school boards start on the same day.
Every Thunder Bay school board
| School board | First day | Last day | March Break |
|---|---|---|---|
| Conseil scolaire de district catholique des Aurores boreales French Catholic | Sep 3 | Jun 29 | Mar 15 - Mar 19 |
| Lakehead District School Board Public | Sep 3 | Jun 29 | Mar 15 - Mar 19 |
| Thunder Bay Catholic District School Board Catholic | Sep 3 | Jun 29 | Mar 15 - Mar 19 |
Count the days
How many days are in the school year, in winter break and in summer, for schools in Thunder Bay.
Common questions
- When does school start in Thunder Bay in 2026-2027?
- Thursday, September 3, 2026 at all 3 Thunder Bay school boards.
- How many school boards are there in Thunder Bay?
- 3: Conseil scolaire de district catholique des Aurores boreales, Lakehead District School Board, Thunder Bay Catholic District School Board.
- When is the last day of school in Thunder Bay?
- CSDCAB, Tuesday, June 29, 2027. LDSB, Tuesday, June 29, 2027. TBCDSB, Tuesday, June 29, 2027.
- When is March Break in Thunder Bay?
- CSDCAB, Mar 15 to Mar 19. LDSB, Mar 15 to Mar 19. TBCDSB, Mar 15 to Mar 19.
Plan the year around these dates
Your board's dates, with room for your own.