CIS Calendar Academic Year 2026-27 Final

August-2026

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
						1	2
1	3	4	5	6	7	8	9	Term 1
2	10	11	12	13	14	15	16	Term 1
3	17	18	19	20	21	22	23	Term 1
4	24	25	26	27	28	29	30	Term 1
5	31							Term 1
20	Monthly Total \| Cumulative: 20

Monthly Events

3-4 Aug - Teacher Orientation

5 Aug - Parent/Student Orientation

6 Aug - T1 Begin (1st day of school)

12 Aug - The Queen Mother's Birthday

18 Aug - Start of After School Activities

September-2026

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
5		1	2	3	4	5	6	Term 1
6	7	8	9	10	11	12	13	Term 1
7	14	15	16	17	18	19	20	Term 1
8	21	22	23	24	25	26	27	Term 1
9	28	29	30					Term 1
22	Monthly Total \| Cumulative: 42

Monthly Events

4 Sep - Student Council Election

18 Sep - Teachers in Service (No school for student)

23-24 Sep - Math/ Business/ Economics Fair

October-2026

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
9				1	2	3	4	Term 1
10	5	6	7	8	9	10	11	Term 1
	12	13	14	15	16	17	18	Break
1	19	20	21	22	23	24	25	Term 2
2	26	27	28	29	30	31		Term 2
16	Monthly Total \| Cumulative: 58

Monthly Events

5-9 Oct - Assessment Week

12 Oct - Term Break

13 Oct - Anniversary of the Death of King Bhumibol

14-16 Oct - Term Break

19 Oct - T2 Begin (School Reopens)

23 Oct - Chulalongkorn Day

November-2026

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
2							1	Term 2
3	2	3	4	5	6	7	8	Term 2
4	9	10	11	12	13	14	15	Term 2
5	16	17	18	19	20	21	22	Term 2
6	23	24	25	26	27	28	29	Term 2
7	30							Term 2
22	Monthly Total \| Cumulative: 80

Monthly Events

4-5 Nov - English Fest

20 Nov - No After School Activities

21 Nov - Family Fun Run Day

23 Nov - Parent Teacher Conference (PTC)

27 Nov - Last Day of After School Activities

December-2026

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
7		1	2	3	4	5	6	Term 2
8	7	8	9	10	11	12	13	Term 2
9	14	15	16	17	18	19	20	Term 2
	21	22	23	24	25	26	27	Break
	28	29	30	31				Break
13	Monthly Total \| Cumulative: 93

Monthly Events

1-3 Dec - Field Trips [R1-Y8]

4 Dec - Y10-13 I Mock Exams

5-7 Dec - King Bhumibol's Birthday

8-11 Dec - Y11-13 I Mock Exams

14-15 Dec - Sports Day Practice

16-17 Dec - Sports Day

18 Dec - In Lieu Of Constitution Day

21-30 Dec - Break

31 Dec - New Year's Eve

January-2027

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
					1	2	3	Break
	4	5	6	7	8	9	10	Break
10	11	12	13	14	15	16	17	Term 2
11	18	19	20	21	22	23	24	Term 2
12	25	26	27	28	29	30	31	Term 2
15	Monthly Total \| Cumulative: 108

Monthly Events

1 Jan - New Year's Day

4-8 Jan - Break

11 Jan - School Reopens

12 Jan - Start of After School Activities

28-29 Jan - Overnight Camping Trip (Year 10 - Year 13)

February-2027

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
13	1	2	3	4	5	6	7	Term 2
14	8	9	10	11	12	13	14	Term 2
15	15	16	17	18	19	20	21	Term 2
1	22	23	24	25	26	27	28	Term 3
21	Monthly Total \| Cumulative: 129

Monthly Events

4-6 Feb - Quran Competition

5 Feb - No After School Activities

15-19 Feb - Assessment Week

22 Feb - Term 3 Begin (School Reopens)

23-24 Feb - Arabic & Islamic Quiz bowl

March-2027

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
2	1	2	3	4	5	6	7	Term 3
	8	9	10	11	12	13	14	Break
3	15	16	17	18	19	20	21	Term 3
4	22	23	24	25	26	27	28	Term 3
5	29	30	31					Term 3
15	Monthly Total \| Cumulative: 144

Monthly Events

4-9 Mar - Break

10 Mar - In lieu of Makha Bucha

11-15 Mar - Eil ul-Fitr (Tentative)

19 Mar - Science, STEAM & Computer Science Exhibition

April-2027

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
5				1	2	3	4	Term 3
6	5	6	7	8	9	10	11	Term 3
	12	13	14	15	16	17	18	Break
7	19	20	21	22	23	24	25	Term 3
8	26	27	28	29	30			Term 3
17	Monthly Total \| Cumulative: 161

Monthly Events

1-8 Apr - Year 10 - Year 13 - Mock Exams 2

9 Apr - MFL Festival/Art Exb/Student Led Conference

12 Apr - In lieu of Chakri Day

13-15 Apr - Songkran Holiday

16 Apr - Break

19 Apr - School Reopens

22 Apr - Global Earth Day

23 Apr - Year 9, Year 11 IGCSE, and A Level Orientation

May-2027

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
8						1	2	Term 3
9	3	4	5	6	7	8	9	Term 3
10	10	11	12	13	14	15	16	Term 3
11	17	18	19	20	21	22	23	Term 3
12	24	25	26	27	28	29	30	Term 3
13	31							Term 3
16	Monthly Total \| Cumulative: 177

Monthly Events

1 May - Music Festival

4 May - Coronation Day

17-21 May - Eid Ul Adha Holidays

25 May - Last Day of After School Activities

26-31 May - Final Exams

June-2027

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
13		1	2	3	4	5	6	Term 3
	7	8	9	10	11	12	13	Summer School
	14	15	16	17	18	19	20	Summer School
	21	22	23	24	25	26	27	Break
	28	29	30					Break
3	Monthly Total \| Cumulative: 180

Monthly Events

1-2 Jun - Final Exams

3 Jun - Queen Suthida's Birthday

4 Jun - Last day of School

7-19 Jun - Summer School

July-2027

Wk	Mon	Tue	Wed	Thu	Fri	Sat	Sun	Term
				1	2	3	4	Break
	5	6	7	8	9	10	11	Break
	12	13	14	15	16	17	18	Break
	19	20	21	22	23	24	25	Break
	26	27	28	29	30	31		Break
0	Monthly Total \| Cumulative: 180

Monthly Events

28 Jul - King Vajiralongkorn's Birthday

Total Academic Days for Year: 180

Term Break (School Closed)

Public Holiday (School Closed)

School Activities

After School Activities

School Re-Opens

Crescent International School

Academic Calendar 2026-2027

Total Academic Days for Year: 180