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St Clair CDSB 2026-2027 School Calendar Holidays, breaks, and no school days

Next no-school day
Monday
October 5
Professional Development Day
No-school days
23 weekdays
8 single days + 15 break days
First day
Tuesday
September 8
2026
Last day
Tuesday
June 29
2027
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School year at a glance

First Day Last Day No School Break School Day
September 2026
SuMoTuWeThFrSa
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30
October 2026
SuMoTuWeThFrSa
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
November 2026
SuMoTuWeThFrSa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30
December 2026
SuMoTuWeThFrSa
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31
January 2027
SuMoTuWeThFrSa
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31
February 2027
SuMoTuWeThFrSa
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28
March 2027
SuMoTuWeThFrSa
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
April 2027
SuMoTuWeThFrSa
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30
May 2027
SuMoTuWeThFrSa
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31
June 2027
SuMoTuWeThFrSa
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30

Longer breaks

Winter Break
Sat, Dec 19 – Sun, Jan 3
16 days off
10 school + 6 weekend days
Spring Break
Sat, Mar 13 – Sun, Mar 21
9 days off
5 school + 4 weekend days

All 2026-2027 dates

No-school days, breaks and schedule changes, month by month.

September 2026

  • Professional Development Day Wednesday, September 2nd No school
  • First Day of School Tuesday, September 8th First day

October 2026

  • Professional Development Day Friday, October 2nd No school
  • Professional Development Day Monday, October 5th No school

November 2026

  • Professional Development Day Friday, November 6th No school
  • Professional Development Day Friday, November 20th No school

December 2026

  • Professional Development Day Friday, December 4th No school
  • Winter Break Monday, December 21st – Friday, January 1st · 10 school days off Break

February 2027

  • Professional Development Day Wednesday, February 3rd No school

March 2027

  • Spring Break Monday, March 15th – Friday, March 19th · 5 school days off Break

May 2027

  • Professional Development Day Friday, May 7th No school

June 2027

  • Professional Development Day Friday, June 4th No school
  • Last Day of School Tuesday, June 29th Last day

Schools using this calendar

28 schools follow the St Clair CDSB calendar.

Browse all schools (A–Z)
C
Christ The King Catholic School
G
Georges P Vanier Catholic SchoolGood Shepherd Catholic SchoolGregory A Hogan Catholic School
H
Holy Family Catholic SchoolHoly Rosary Catholic SchoolHoly Trinity Catholic School
M
Monsignor Uyen Catholic School
O
Our Lady Of Fatima Catholic School
S
Sacred Heart Catholic SchoolSacred Heart Catholic SchoolSt Agnes Catholic SchoolSt Anne Catholic SchoolSt Anne Catholic SchoolSt Elizabeth Catholic SchoolSt John Fisher Catholic SchoolSt Joseph Catholic SchoolSt Joseph Catholic SchoolSt Matthew Catholic SchoolSt Michael Catholic SchoolSt Michael Catholic SchoolSt Patrick'S Catholic High SchoolSt Peter Canisius Catholic SchoolSt Philip Catholic SchoolSt Ursula Catholic SchoolSt Vincent Catholic SchoolSt. Angela Merici Catholic School
U
Ursuline College Chatham Catholic Secondary School

Frequently Asked Questions

When is there no school at St Clair CDSB in 2026-2027?
There's no school at St Clair CDSB on nine single days in 2026-2027: Wednesday, September 2 (Professional Development Day); Friday, October 2 (Professional Development Day); Monday, October 5 (Professional Development Day); Friday, November 6 (Professional Development Day); Friday, November 20 (Professional Development Day); Friday, December 4 (Professional Development Day); Wednesday, February 3 (Professional Development Day); Friday, May 7 (Professional Development Day); Friday, June 4 (Professional Development Day). Breaks: Winter Break (Monday, December 21 to Friday, January 1) and Spring Break (Monday, March 15 to Friday, March 19).
When is the first and last day of school at St Clair CDSB in 2026-2027?
The first day of school at St Clair CDSB is Tuesday, September 8, 2026. The last day of school is Tuesday, June 29, 2027. That's a school year of about 42 weeks.
How many school days are in the 2026-2027 school year at St Clair CDSB?
About 188 school days: the weekdays from the first day to the last day, minus days off.
How many days off does St Clair CDSB have in 2026-2027?
About 23 weekdays with no school, not counting weekends or summer. That's 15 weekdays of breaks plus eight single days off. There are also seven long weekends, where a Friday or Monday off joins the weekend.
What is the longest break at St Clair CDSB in 2026-2027?
Winter Break is the longest: 16 days in a row with no school, from Saturday, December 19 to Sunday, January 3, including weekends (ten school days off).
What is the longest stretch of school without a day off?
Thirty-four school days in a row (about seven weeks), from Monday, March 22 to Thursday, May 6.
Which month has the most days off at St Clair CDSB?
December has the most, with ten weekdays off.

Counts are approximate and based on the published calendar.

Source: St Clair CDSB, last updated Oct. 2026. Dates can change, so confirm with the school before making plans.

All 2026-2027 school calendars

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