School Calendar
Academic Calendar 2025/2026
2026
August
17: Start of Term 1 / Orientation
20-21: Overnight Camp at ASIS
September
1: Start ECA / CCA (TBC)
17: Thai Teachers Day-Wan Kru Day
25: Mid-Autumn Festival
October
12-16: Mid-Term Break
23: Chulalongkorn Memorial Day
30: Halloween
November
2-6: Camp Week for Primary (TEN)
9-13: Anti – Bully Week
12: World Kindness Day
24: Loy Krathong
30: Assessment Week (CA)
December
1-3: Assessment Week (CA 1)
4: Marking Day (์NO Lesson)
9: End of Term 1 / Chirstmas
10: PCT / Report Card Day
11-31: School Break
2027
January
1-4: School Break
5: Start of Term 2
8: Children’s Day
19: Start of CCA (TBC)
28: International Day
February
1-3: Chinese Language Week
4-5: Chinese New Year Break
22: Public Holiday
March
8-12: Math Week
22-25: Assessment Week (CA2)
26: Marking Day
April
1: End of Term 2 / Songkran Day
2: PCT/Report Card day
3-20 :School Break
19: Start of Term 3
29: International Dance Day
30: World Book Week
May
4: Coronation Day
5: Funfair Day
20: Visakha Bucha Day
June
3: Her Majesty the Queen ‘s Birthday
4: World Environment Day
11: Music Fest ASIS
14-17: Assessment Week (FA)
18: Marking Day
24: End of Term 3
25: PCT/ Report Card day
July
1-31: Summer Break
August
16: Term 1 2027/2028
* Please note that the calendar is subject to change